Because of how rarely they're shuffled, I went with these postcard sleeves for $3. They are basically large penny sleeves but they work fine as long as you're careful when shuffling
I should probably mention that this isn't all THAT budget after all:
ikea cutlery tray: $16.99
https://www.ikea.com/us/en/catalog/products/70263564/
ikea box: $9.99
17 ultrapro boxes: 17*$1.99 [support a local game store or someone who sells for $1.99, please don't buy them from amazon for $4.50!!!]
Sleeves: about $25 overall, ... note, the amazon prices fluctuate wildly day to day for some reason
gear: https://www.amazon.com/dp/B002KDNAU2/ref=cm_sw_r_cp_apa_HJR-BbATW6DKJ
SE (note: dont actually fit perfectly): https://www.amazon.com/gp/product/B003D06SGE/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
locations: https://www.amazon.com/gp/product/B00J01XP52/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
For the FA , WPs, etc, ..
2 ring binders from Target, $5.99 each.
a little bit of wood from michaels ~$5 + 90min time and some wood glue.
add the sleeves for the cards inside the boxes:
~20x $1.75 for the sleeves:
https://www.miniaturemarket.com/ffgffs03.html
Perfectly fitting SEs -- you wish. The sleeves are about 2mm too short... I tried "double bagging" them by having a second SE sleeve the other way round -- but then you actually start having weird refraction light issues and cannot read the cards all that well anymore.
Anyway, at own peril: these are what I am using:
https://www.amazon.com/gp/product/B003D06SGE/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
For the Locations, I am using these:
https://www.amazon.com/gp/product/B00J01XP52/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
and those are perfect
For the FA , WPs, etc, ..