Doh that should read BLB in the title

Hi I have a 55 plate 2.0 TDi manual 140BHP BLB engine code. Just stripped it down today and it has dropped a valve which has mashed the top of No 4 piston and mashed the head beyond repair.

What options do I have for a replacement engine ?

BLB obviously also BRE from a later A4 I believe ?

What about a BKP 2.0 Tdi 140BHP from a Passat would that fit ? I think these run Semens injectors rather than Bosch in the BLB & BRE so assume my bosch injectors wont fit this engine ?

Any other 2.0 TDi 140BHP engines that would fit ?

Or if someone has a good cylinder head and rockers they could be parted with plus a piston ?

Bores appear OK on my engine

thanks Ben