Anybody who wants to dog on ls/vtec builds, just check my sig. Nuff said
(13.6 on OEM parts, full interior in an integra on street tires)

If you do end up going ls/vtec, all you will retain from your current build is: Ls block/rods/crank etc.
Using an ls tranny for an n/a application is a no no.

So baisically if I were you I would buy a shortblock & build it on the side, then purchase a tranny such as a ITR tranny & turn around & sell your complete ls swap etc....