Friend may be looking for one of the above in the near future....anyone any hints on where to source one for a reasonable cost?

Reconned engines from your local Ford dealers are usually suprisingly affordable

Looking for new not recon...

For new you need to buy from Ford powertrain products.

Think you want a ZSG-414.

http://www.fordpowerproducts.com/FordPowerProducts/vehicular.htm

UK dealers
http://www.fordpowerproducts.com/FordPowerProducts/britain.htm