Me personally, umm, 2.5grand or so inc the suspension and transmission work to a spec id be happy with, and a set of rims.
But thats 90% DIY and im good with GTT engines, thatd be well over 200bhp mind!

The one in the vid is bog standard 1.7 non turbo and chopped standard springs, and a welded diff.
Properly low budget job and lovely car.

Dont need a big spec and big power to have an awesome car.