During an SAR tour at Manston, I overflew this (?) wreckage when it was exposed at low tide on countless occasions, but my own opinion was of an upside down B-24. It never really looked 'Lanc-like' and all four engines had the distinctive underside of the P & W ones - a long tube (exhaust?) with a circular fitting just aft of pistons - and nothing like Merlins.
However, there were other wrecks around, so may be I was looking at the wrong one, but it was first pointed out to me as 'a Lancaster'.