Says your keeping the original hole in the tunnel ? As it was only Australia that didn't use the mk3+ Cortina gearbox in the RS which the stick sits 3 to 4 in further back . Personally I'd do the offset oblong cut around the stick hole and spin it around 180° reweld back in. If your about 6ft tall like me you'd be glad you did so you don't always reach for the stick. The console can be moved back about 30-40mm without looking out of place and the leather cover doesn't get stretched if using a RJ or q/shift.
Radiator, look on my post, I used a Gemini(😞) rad but the less wider one but is an inch wider than Escort, another option is use a corona st124 rad, these are my go to conversion rads ever since I did the orange mk1 Mex zetec , it fits under the bonnet and just between the chassis.
I think my zetec van has the corona radiator .
Ok, they prolly will need one or both pipes moving depends on engine but a small price for a better radiator upgrade.
Just throwing up options for you there mate