Hm... I have a few questions.
Engine mount is now longitudinal rather than transverse mount in the standard S2000, now how would he mate the final output drive to the drive shaft ?. Must be custom job here.
Using BMW tachometer, he will never "see" the redline being from 8K to 9.5K rpm!. At 1300 kgs, its light for a 2 litre car. This thing must be fast on a track, provided the weight balance is intact or improved.
In Philippines, someone plonked a K20 engine into a Honda Jazz. It had to undergo wide-body conversion to fit the huge engine into the Jazz/Fit engine bay. This one front bias weight means it only good for drag-racing.....