Any guidence on B20b to be made into a 2.0 vtec

I found a person selling a B20b with s80 transmission with a CTR LSD for $1100. Is this a good start to build a 2.0 turbo vtec engine? What you recommendations. I have a complete 97 GSR engine OEM, B17a OEM, Ys1 gsr transmission, mpower lsd.

I want to ultimately have a proper righteous built 2.0 liter engine, with VTEC head, turbo Godspeed ar.63 t 3/4, with my Sk2 ultra intake manifold. I am hoping the YS1 92 GSR transmission gears will swap in the 4 and 5th gears of the S80 transmission to give me a higher top speed.

what aftermarket goods do I need to make this a 400+ hp engine?

May be this link may be helpful.
http://www.c-speedr.com/howto/b20vtec/b20vtec.php