actually hor, some small thing if wanna source yourself ok la. but thn thing like turbin, intercooler, injector those, i think better leave it to mech to source la.
coz u see, if anything cock up, you will have to do the running. like turbin loose shaft la, white smoke la this and that. all this our experince (at least me is not good enaugh) is not good enaugh to jduge the turbo condition whn we buy. So if we buy frm mech, anything happen, we deal with the mech direct. save up all the trouble. anyway mech normally also markup abit only nia. rm50-100 lebih kurang la. mahai, plp also cari makan mar. whahahaha
if you wanna go BOT, i would to say get all the major parts ready 1st. there definietly some small parts u wun able to get ti ready be4 hand coz u dunno what it is, neither do i but i can gurantee there will be some small thing we cant expect now.