It would be far easier to fit it all to a T-jet as it'll already have the forged crank/pistons, lowered compression, turbo manifold/oil feeds/drains/cooling system, etc. Still not cheap though.
Converting a standard 1.4 16v will be much more expensive.
And it won't be covered under the standard warranty as you're modding a vehicle that the kit wasn't specifically designed for.
gotta admit though, it'd be pretty cool!
I'm interested in seeing this abrth replica, more engine wise than looks wise.
True, i'd love to see the engine in that beauty!