the box is 5 years old or more so its been through some abuse.theres less "meat" on the lip so less places to screw woofers in and thats very important considering he snaps all the screws he puts in.
he does get it from home depot last I checked.
RF made the amps that size just for Steve's box
yes thats 8 gauge for the subs.
runs of 8 gauge? it depends on how he wires them.
10 1" RE audio tweeters, 2 4" Rainbow Midrange, 4 RE XXX 6.5" Midbass and obviously 4 18" BTL's for a total of 20 speakers
he is going to add an 8" sub to each door and 6.5" kicks so 6 more speakers on top of whatever else he is doing
did that answer everything?