sr20det/ka24de mods

i am planning/want to buy an sr20det engine to swap into my '92 240sx, but i'm not completely sure if im actually going to be able to buy it. i wanted to know what kinds of uprgrades i could put into my ka24de engine but then also be able to swap over to an sr without too much hassle in case i get one. specific brands/models would be appreciated.

2.5-3" exhaust, cone filter, copper plugs, thats about it, if you want turbo the ka24de.. get a big turbo.. .64a/r or better.. all the fittings then when that motor goes, sell the ka exhaust mainflod, get a sr20det mainflod that will hold the turbo on the ka motor and swap it into the sr, you can also use the b.o.v., fmic, electronics(boost controller, turbo timer) ect.. thats if you turbo the ka tho..
1