SR20DET or KA-T

[Sick240SX1320]

Sup. Im a 16 year old new to this club and i recently fell in love wit this car. I ive moved from civics,ecliplses, M-6's and now the 240sx. I know that the stock 240sx is slow, a lil faster then then most STOCK Hondas. I wanna run like maybe mid 12's, hopefully with out NOS. My question is what would be better to do wit lil cash. Make it a KA-t or swap a SR20DET. Ive seen some SR20DET's for like 1700 but im not sure if it comes wit everything u need. And i also seen turbos for the KA and they seem a lil pricey like 4000. Evenutally if i get the SR20DET engine i will buy a new turbo, Garrett t3/t4 in mind. I really wanna beat boosted civics, most porshes and vipers. I know it sounds crazy for a lil teen but it will take a while to do what i wanna do. Thanx u guys if u can help me wit the question. Sorry one last question. Is the insurance high for the 240, im plannin on getting a 91 240sx se