Yep thats right,the newer (MK5 escort RS2000) is front wheel drive,just a case of turning the engine round is all!
Your best donor would be a Mondeo 2 litre 16v,as these go for peanuts (you only need it to run ok,dont matter if its rotten and an MOT failure).
You've then got everything you need but the gearbox - should be able to pick a ford type 9 up from a scrapyard/breakers (or ebay!)
Obviously you'd need to mod the propshaft (or have that done;quite a few places will do this for you and balance it).
As regards the wiring
- again you could get someone to separate out the bits you need and the bits you don't need from the donor car,or get a loom made up,or do it yourself (ie get rid of headlamp,heater control,lights,gimmicks
wiring etc,just to leave you with whats required to make the thing run (coil pack,lamda sensor,charging system,ecu,wires to ignition etc).Obviously you can use the existing viva loom for headlamps,brakes,rear lights.heater,indicators etc).
This is how i'd go about it.Know a chap who bought an engine (cossie 24v),and didn't get all the necessary wiring,sensors,ecu and so on with it - it's still sat in his garage 4 years on
Gotta be the best bet to buy a donor,andeffectively "reshell" that engine and running gear into your car (no matter what car it is).
Got a "transplant" to start on myself soon - should be interesting - a 270BHP Subaru WRX Turbo engine,into a 1965 Beetle
HOpe this is of some interest/help.Dave