theres already a guy (birmingham area i think) who has done the mk1 mondeo touring car replica thing. its a 2.0 zetec on throttle bodies and is done in the ICS livery. heres an old pic of it (before it had the TB's)
theres also someone in scotland doing one of the later mk1 valvoline replica's.
i've got a set of the genuine mk1 mondeo (works) 18 x 8J white dymag's on one of my mondies, converted to group A fitment. a very nice find indeed!
wouldnt you be better off starting off with a petrol mk1, or are you keeping it diesel? its a PITA converting a diesel mondeo to petrol. there is stuff you can do to the 1.8TD engine to make it much quicker, on my old one i put a big saab front intercooler on it and some other bits. you can also put a bigger turbo on with an adaptor plate, but its always gonna be a very heavy cast iron 8valve single cam 'not very revvy' lump...