It's a lhd XR4. You will find many parts from rhd cars fit.

A couple notes though on items specific to the XR4Ti

Engine
Wiring harness
ECU
chassis rails/floor pan
exhaust
bonnet
gas tank
whole rear floor (spare well)
fuel pump

Look under your front fender liners to see the 909 chassis plates welded in. The chassis is stronger than a sierra chassis. Notice the chassis rails go the lenth of the car?

Parts can be found over here like gaskets, thermostats, etc but I'd always convert to cosworth stuff if you can like saff suspension and brakes or just keep the XR bits. If you need anything like that let me know, I'll hunt it down for you. Welshmen have been good to me over the years.

You really should join merkurclub.com and merkursport.com