Couple questions for 20's on 89 S10

Im putting 20's on my S10 and i have a couple questions on the firewall. Where is everyone moving the fuse box and what to do with the brake booster??? Any help asap would be great.

a lot of people get a hydro boost. i got a '96 sonoma traditional bodydropped with 20 x 8.5 up front (245/35/20) and the stock booster is close but when aired all the way out it rubs. i found a booster off of an older silverado, like a 89. it's a little smaller and i believe it should work. if not, i'll get the hydro boost.

Another standard option on the s-10 is swapping out the geo metro booster, its a 7" or so with plenty of clearance.

Any certain year on the metro?