all '92 civics have wiring to the shock towers for VTEC.

the LS(B18B) swap would be better in the long run if you want to go turbo.
B16A is a good swap, but you're going to get killed by GSR(B18C1) swaps all the time.

if you can do it yourself then your 1500-2k might get it done.
check my site my site for a basic how-to on the electrical aspect. be sure to check out the link at the top to the C-speed how-to for the mechanical aspect of the swap.
Its what I used to do mine and it was a lot of help. (the B16a and B18c1 swaps are basically the same)