Hi there all!

I am currently in discussion with a friend about purchasing his 1990 mk4 xr3i.
its a clean shell with no rust (recently had work done) with the 1.6 efi engine. I am planning on driving it around for 12 months or so whilst building a zetec turbo engine on a stand.
Ideally i'd like to have it running at a safe 300bhp, and understand that this may be too much power (but f*****g fun!! .
Does anybody know roughly the cost of building an engine up if i already have a 2.0 zetec blacktop? if so, what am i roughly looking at price wise? I've had a look around various forums across the internet and have a general idea of whats needed. it would help it speak to anyone who has previously done this swap before, or worked on the 2.0 zetec.

I'm sure there's plenty of knowledge on here, any pointers would be much appreciated!

Thanks guys