I've got a book that has certain measurements, weights, lengths etc on various models up to mk3, I dont think the engine bay will be one of them though.

Is this what you want ?
Here's the dimensions of a Rallye
Track front 56.3in (1430mm)
Track rear 56.3in (1430mm)
Wheelbase 97in (2464mm)
Length 158.9in(4035mm)
Width 66.9in(1700mm)
Height 55.1in(1400mm)
Unladen weight 2632lb(1195kg)
mk2 8 valve
Track front 56in (1422mm)
Track rear 56in (1422mm)
Wheelbase 97in (2464mm)
Length 157in(4988mm)
Width 66in(1676mm)
Height 55in(1397mm)
Unladen weight (3-door) 2026lb(920kg)
Unladen weight (5-door) 2070lb(940kg)
mk2 16v
Track front 56in (1422mm)
Track rear 56in (1422mm)
Wheelbase 97in (2464mm)
Length 157in(4988mm)
Width 66in(1676mm)
Height 54.9in(1395mm)
Unladen weight (3-door) 2114lb(960kg)
Unladen weight (5-door) 2158lb(980kg)
I'm such a geek !

There's no specific dimensions for the synchro so I'm guessing that they are the same as a mk2 but will probably be slightly heavier due to the 4 wheel drive.
If you need anything else give us a shout and I'll see if it's in my bible.
