Unsaid to this point, I believe, is that if this is a Long Branch, and has actually been converted to a Mk 2, it is a rare, rare No 4 Mk 1 body. Not very many of these exist.

Now, if he converted it himself, it's a shame.
But if it was a REAL Long Branch No. 4 Mk1/2, it's a CRYING shame.

That said, I'd own it.