Silly Billy

So I had a mad idea of instead of rebuilding my FRP lump in my mk5 why not throw a 2.0 ecoboost in it... so today I went and brought one! I know the IB5 from the st150 is made of chocolate but as far as I’m aware the ecoboost is a rework of the 2.0 duratec so has the same PCD but I’m on a 2 week time frame as I have to get the car moved quick. My plan for the moment was to throw one of those on there with some st150 shafts (if that’s a thing) then go for a the original st box or mtx75 (which i know requires cutting of the chassis leg). The bearing mount on the shaft isn’t a problem, I can work around that it’s just length of the shafts and if they’ll fit the hubs if not the cv joints? Basically I want the most viable & quickest option without having custom shafts made & also future when I can get it in at work for the weekend and do it probably, thanks.