New member tel80y with a problem

Hi,
I'm a new member living in Livingston Scotland. Although I'm not new to owning a Ford Maverick. I had a 1994 2.7 TD GLX LWB which I bought on Ebay two yearsago. I had enjoyed driving it and found it a very versatile vehicle, until a delivery truck in a narrow lane decided to do some bodywork modifications without my permission. the Insurers deemed it beyond economic repair and paid me out enough to buy a new(er) one.

As I had a good experience last time, decided to stick with the Maverick and used Ebay again. I bought a 1997 Ford Maverick 2.7 TD Aspen LWB on Ebay, it looked in very good condition, 106 k mile, FSH, bodywork and interior in excellent condition. I spent about 45 minutes crawling under and over it, did the usual engine checks and listen carefully to the gear changes when I test drove it. I even took a voltameter and checked the battery and alternator output.

I drove it home and 280 miles later a piston or rings went on the A1 at about 70 mph and I have now got clouds of smoke coming from the exhaust and oil pumping out of the dipstick tube.

I got a tow home and looked at it the next day. i checked the oil level and it was off the bottom of the stick, it took 5 litres to bring it up to top notch. The engine starts and runs but tick over seems low and a bit lumpy. I have not tried to drive it as it is leaking oil.

It's pretty obvious that i need to replace the engine, but its is the question of what with? I have had some quotes for engine rebuilding (with guarantees) in th £1300 (inc VAT) region and I have seen the Ebay adverts for engines from £375 to £500 from breakers (with guarantees!?!?!?!?!).

I am unsure if I need to get an engine of a particular vintage as I've seen adverts saying suit 93-96 etc. I have got the opportunity to get my original vehicle back from the insurance people. Would the engine from a 1994 2.7 TD be suitable to use as a donor? Would I be able to swap part to bring it up to 1997 Spec., what would need to be changed and is any of it technically challenging.

If I go for a rebuild of the current engine, is there any easy way to check
that major items like the turbo and the diesel pump have not been damaged.

Anyone got a 1997 spec 2.7 td with reasonable mileage for sale at a reasonable price?

Any and all advice gratefully received.
Cheers
tel80y