Yes, I did spell that right!
I'm currently in the process of chopping up a Revell Lancaster B.I/B.III & a pair of Airfix Typhoon IBs to end up with a slightly smaller version of the Lancaster* powered by two Napier Sabres.
Photos when I've finished the primary, pre-build destruction/construction.
Power output:
Merlin XX = 1,250 hp each ( x 4 = 5,000 hp total)
Sabre II/V = 2,200/2,600 hp each ( x 2 = 4,400/5,200 hp total)
[ Note: The Sabre V is a developed Sabre II ]
[*: Not really a Manchester, but close enough for me.]