All 1.6-1.8l 8v MK2 boxes will fit, I think the 16v has a different input shaft, that could be easily cured with a 16v clutch. The only other problem you will have, is the driveshaft flanges. I think the MK1's were 90mm and the MK2's were 100mm. If this is the case, new drive shaft inner joints are fairly cheep and a direct replacement for your drive shafts.
Cheers,