That doesn't include the chassis though.
But it reality these cars are so well sealed now its as well protected as a modern car. Still won't be taking mine out in bad weather though.
I would say who cares, but thats just me. The style is still there, the interior style is also very close to oem style overall, it still has a carbed L series and similar drivechain.
The changes are large, but it still looks like and will still feel like an S30. So to me the changes are less radical than one with a silly bodykit or V8 swap (nothing against V8 swaps, but they do take it further away from original by loosing a straight 6)