Gouky on the U.S. forums has a great kit for a Mk2 conversion. Includes all the brackets and exhaust manifold. These are around the 1800 delivered.
Ethan has a 2gr for sale for a good price which has been rebuilt but does require a possible set of lifters as something is a little sticky in the valve train. Pretty easy fix if you are mechanically minded. This is around the 1500 mark
There are looms with ECU's available for under 1000.
You can pick up a tired turbo MK2 for around 7000
Clutch is 400
So, with that kind of ballpark, you can put one together for 15000.
I will have some updates in the next month or so on my conversion which may help with your goal.