One in the south is one I got it from as a running motor...
There is another near Manchester and it is bit high miles but if nothing comes about might go for it, though need to inquire if still available.
See one for sale that was rebuilt also for 800 that I am considering and shorter drive too drive.
Would rather spend 1-200 on a good running engine than the extra on rebuilt, but at this point feels like I might end up in a spot of paying thrice for being cheap.
Recall someone listing one for sale on forum but cannot find the thread, unlikely to still be available I'd guess.
Would be nice if amf block was indeed same for bottom half, however I doubt it'll be that simple. Will go have a look over the parts to see what differs bit later
Edit:
Looking through 7zap, seems they share most of parts, pistons themselves are different, piston rods are same part number, but there are a few internal bits that are different as well, though some seem to just be different revision of part potentially with only letter at end being different, though crankcase itself seems to be a different part.
https://audi.7zap.com/en/rdw/audi+a2/a2/2001-248/1/103-103015/ - cylinder block and bits
https://audi.7zap.com/en/rdw/audi+a2/a2/2001-248/1/107-107010/- cylinder itself.
Running ATL turbo on AMF might cause different issues, though in my mind it should be fine, it is not massively higher compression ratio in AMF, so more compression with more boost would probably be just fine, potentially producing more torque thanks to higher compression and seemingly piston travel being same looking at the parts.
Top of engine appears identical which is nice.
actual cylinders are not expensive and walls are not scored, however I'd need a shed to hibernate in with the engine for a fair while to do a proper full rebuild...