Throwback Bass

Thanks im new! Sorry Lol! Well i have $1000 to spend.

Whats up? Got a question. I live in a small town and the baddest bass around here is a dude that has 2 solo x 18s in a 2 door impala donk. I have a 90 suburban and thinking of walling off the back or make it a two seater. What subs and amps would for sure smoke him? Ive been looking at 2 new fi btl 18s.