Vayakhel sources

by aliyah
rishon (Shemot 35:1)
sheni (35:21)
shlishi (35:30)
revii (36:8)
chamishi (36:20)
shishi (37:17)
shevii (38:1)
maftir (38:18)
haftara, according to Italian and Sefardic practice (I Melachim 7:13)
haftara, according to Ashkenazic practice (I Melachim 7:40)

by perek
perek 35 ; perek 36 ; perek 37 ; perek 38

meforshim
Judaica Press Rashi in English
Shadal (and here)
Mishtadel
Daat -- with Rashi, Ramban, Seforno, Ibn Ezra, Rashbam, Rabbenu Bachya, Midrash Rabba, Tanchuma+, Mechilta, Gilyonot.
Gilyonot Nechama Leibovitz (Hebrew)
Tiferes Yehonasan from Rav Yonasan Eibeshitz
Chasdei Yehonasan -- not until Shemini
Toldos Yitzchak Acharon, repeated from Rav Yonasan Eibeshitz
Even Shleimah -- from Rabbi Shlomo Zalman Ehrenreich
R' Saadia Gaon's Tafsir, Arabic translation of Torah (here and here)
Collected commentary of Saadia Gaon on Torah
Rashbam (and here)
Abarbanel
Torah Temimah
Kli Yakar
Zohar, with English translation
Baal Haturim
Baal Haturim (HaAruch)
Torat Hatur
Ibn Janach
Rabbenu Ephraim
Ibn Caspi
Ralbag
Dubno Maggid
Imrei Shafer, Rav Shlomo Kluger
Ateret Zekeinim
Mei Noach
Arugat HaBosem
Yalkut Perushim LaTorah
R' Yosef Bechor Shor
Meiri -- not until Vayikra
Ibn Gabirol -- not until Kedoshim
Rabbenu Yonah -- not until Vayikra
Seforno
Aderet Eliyahu (Gra)
Kol Eliyahu (Gra) -- not until Shemini
Mipninei Harambam
Sefer Zikaron of Ritva -- not until Vayikra
Malbim
Chiddushei HaGriz
Noam Elimelech -- not until Pekudei
Michlal Yofi
Nesivot Hashalom
Gutnick Edition Chumash

The following meforshim at JNUL. I've discovered that if you click on the icon to rotate sideways, change to only black and white, select only the portion which is text, it is eminently readable on paper.
Ralbag (pg 186)
Baal HaTurim (33)
Rabbenu Bachya (144)
Chizkuni (85)
Abarbanel (222)
Shach (142)
Paneach Raza (48)
Yalkut Reuveni (pg 111)
Sefer Hachinuch (pg 37)
Aharon ben Yosef the Karaite (136)

rashi
Daat, Rashi In Hebrew (perek 35)
Judaica Press Rashi in English and Hebrew
Mizrachi, Mizrachi (on Rashi, 146)
Gur Aryeh (Maharal of Prague)
Maharsha
Siftei Chachamim
Berliner's Beur on Rashi
Commentary on Rashi by Yosef of Krasnitz
R' Yisrael Isserlin (on Rashi, 10)
Two supercommentaries on Rashi, by Chasdai Almosnino and Yaakov Kneizel
Rav Natan ben Shishon Shapira Ashkenazi (16th century), (JNUL, pg 89)
Taz
Levush HaOrah
Mohar`al -- not until Vayikra
Yeriot Shlomo (Maharshal)
Moda L'Bina (Wolf Heidenheim)
Dikdukei Rashi
Mekorei Rashi (in Mechokekei Yehuda)
Bartenura
Yosef Daas
Nachalas Yaakov
Also see Mikraos Gedolos above, which has Rashi with Sifsei Chachamim

ramban
Daat, Ramban in Hebrew (perek 35)
R' Yitzchak Abohav's on Ramban (standalone and in a Tanach opposite Ramban)
Kesef Mezukak
Kanfei Nesharim
Rabbi Meir Abusaula (student of Rashba)

ibn ezra
Daat, Ibn Ezra in Hebrew (perek 35)
Mechokekei Yehudah (Daat)
Mechokekei Yehudah (HebrewBooks)
Mavaser Ezra
R' Shmuel Motot (on Ibn Ezra, pg 34)
Ibn Kaspi's supercommentary on Ibn Ezra, different from his commentary (here and here) -- not until Vayikra
Mekor Chaim, Ohel Yosef, Motot
Avi Ezer
Tzofnas Paneach
Ezra Lehavin
Also see Mikraos Gedolos above, which has Ibn Ezra with Avi Ezer

targum
Targum Onkelos opposite Torah text
Targum Onkelos and Targum Pseudo-Yonatan in English
Shadal's Ohev Ger
Berliner
Chalifot Semalot
Avnei Tzion -- two commentaries on Onkelos
Bei`urei Onkelos
Or Hatargum on Onkelos
Targum Yonatan
Commentary on Targum Yonatan and Targum Yerushalmi
Septuagint (Greek, English)
Origen's Hexapla (JNUL)

masorah
Tanach with masoretic notes on the side
Commentary on the Masorah
Minchas Shai
Or Torah
Taamei Masoret -- not until Vayikra
Masoret HaKeriah
Shiluv Hamasorot
Masoret HaBrit HaGadol
Rama (but based on alphabet, not parsha)
Vetus Testamentum

midrash
Midrash Rabba at Daat (35)
Midrash Tanchuma at Daat (35)
Shemot Rabba, with commentaries
Midrash Tanchuma with commentary of Etz Yosef and Anaf Yosef
Commentary on Midrash Rabba by R' Naftali Hirtz b'R' Menachem -- not until Pekudei
Matat-Kah on Midrash Rabba
Nefesh Yehonasan by Rav Yonasan Eibeshutz
Mechilta

haftarah (I Melachim 7:13)
In a separate Mikraos Gedolos (Rashi, Radak, Ralbag, Minchat Shai, Targum, Metzudat Tzion)
Also at Google books, a Mikraos Gedolos:
Gutnick edition
Rashis in English
Daat, with Yalkut Shimoni, Gilyonot,  and Radak
Sefer Melachim with Ralbag and Radak (JNUL, pg 33, right side)
Abarbanel (pg 221, left)
Kli Yakar (pg 403, left)
Aharon ben Yosef the Karaite (pg 31)