Help Please - 1.25 Fiesta Zetec - Sourcing S/H Motor

[FWDRacer]

Wondering whether the Ford PH community can come to the aid of my mates wife. Her 1.25 Zetec Fiesta has lunched itself on the M6 - No coolant and the car has eventually ground to a halt. A swift compression test has shown that all 4 cylinders are toast - not pumping up at all. Trying to source a replacement SH motor in the West Mids area, but would be prepared to travel for a SH unit with pedigree/known FSH.

Can anybody assist with either an engine or recommended Breakers.

Also - for any of the tame technicians that frequent PH - Is the unit backward compatible - i.e her car is a 51-plate. Obviously the same vintage unit is best - but is there anything significant to watch out for in a swap? Could an older unit be used (1.25 intro'd at 98MY?) I'm fairly familiar with Puma's - would I be right in thinking it must a digital dash compatible unit/ECU?

Any help or direction would be appreciated.

Cheers.

G.

[focusboy]

just got one in at work, 1.25 for t reg fiesta, phoned raunds auto spares and salvage pm for no, same block slight different auxillaries but all swapped and engine in and running, always best to go with engine code but some slight variants can be used, hth garry

[FWDRacer]

Engine code offf front face of bloack is "DHF" Prefix - Does this mean any engine starting with code "DH" could be swapped in?

A few sellers on Fleabay have indicated they have "DH" coded engines.

Can anyone shed any light on the subject?