I found @user_2671861540's model, and it was almost perfect for my needs.

I needed an adjustable width spool roller, but ONLY the base whereupon I can mount aftermarket spool roller feet I already had (see the rollers in the pictures). 

I tested plastic bearings, and they just dont work the same as metal - as such to create something that can re-use what I already had, I remixed user_2671861540's model to replace the rollers, and design a recessed platform where these aftermarket roller feet fits into perfectly - retaining the awesome adjustable design from the original.

These 'Filament Spool Holder' rollers come in a set, and can be bought from Temu/Amazon, etc. Their specifications are 165(l) x 24(w) x 30(h) - height doesnt matter. Link will be listed below

I personally glued the roller feet onto the printed base (before i could take a picture of just the base, lol),  but is not required.
 

I used PETG for a bit more strength in the smaller parts, but PLA should work perfectly.