h imate , yes it can be done, once you remove the bulkhead and all the commercial trim your left with a disco with no rear seats, the one we had in had large pop rivets in the holes were the seatbelt bolts thro the wheel arch ,as it was a customers i couldnt dig around it to much , i have heard since that not all of them had the pop rivet treatment, if you know what i mean, also as far as i know the electric window wiring is also left in place, as was the switches, just very black windows,again easly changed from parts on here or ebay. so mate in short yes, also there may be a V.A.T issue , to think about , but im no expert on that side mate, hope this helps,
cheers darren.