Thank you for your answer.
My car will be a highboy style car (34 steel Roadster), so I'm looking for an IFS setup with tubular A- arms.
After surfing around on the net I found this above mentioned guy and from earlier I know about Heidt's of course.

The Heitdt's IFS Super Ride (which is not a Mustang II setup) cost 2495$ all included.
Jim Meyer offer his setup for 1950$. The price is without rotors, balljoints and calipers, which the builder can purcase at a local wreck yard or a GM supplier.

What do you thik of this? I suppose those two setups are fairly equal on most areas with one exception: Jim Meyers GM setup accept 12" rotors from Impala/Caprice while Heidt's setup have 11" rotors as stock. Maybe not a big deal, but since I'm going to use 16" wheels in front, I'd like to have as big rotors as possible.

Other things I should consider?