I am new to the site so will start off with saying Hi

Right what i need advice on is.
I got this months PPC and read alittle about the 340's with the R19 16v engine in.
Which i think is a really cool and really fun idea. SO i want one

I do alot of conversion so want to research as much as i can about this before i start, more info the easy it will be.
I have an engine. As i said i do alot of conversion and fab work, I currently have Redline Magazines Clio 16v in my workshop (Pastys car if anyone reads it) which i am fitting a Vauxhall 2.5 V6 engine into the clio.
So we have a spare engine out of the clio, we really fancy a budjet drifter

Like i have said done loads of conversion, i am not scared of this kind of thing, I own :-
Corsa 3.0 V6 6 speed with NOS (360bhp)
Twin Engine Corsa with 2 x 2lt 16v Turbos (est 900+bhp)
So is there any info on here, or can somone point me in the right direction?
Will any 340 do?
Can you get 3dr 340's?
Any parts i need to buy?
Anything i need to look out for?
Can you just weld the diff up?
Any advice welcome.