I'm also thinking of converting my escort to rear wheel drive although I have a van which is running the fuel of satan (diesel!!!) (thinking of turning it into a pick up). I was thinking along the lines of getting a spares n repair 4x4 rs2000 as it would already have the potential for transplanting the rear diff, drive shafts etc and using the heavenly 2ltr petrol engine and gear box. The only problem i can see apart from moving the fuel tank ( a new one would be needed any way) and a bit of structual working for the drive shaft is that the drive shaft would not be long enough and would need one making (as well as completely rewiring the loom). Any avice peeps or am i opening up a can of worms not worth opening!!