I think it would be difficult to include the SM.85 in the tree without a rejig, but it doesnt have to be a complx one…
P108A > foldered with FC20 as the are both big gun attackers.
Then folder the SM.85 in its place with the Breda 88, both more traditional bomb orientied ground attackers, both unsuccessful twins.
Theres probably ways to get in alongside the Ba.65 (its house mate), or the Ju-87 (dive bombers), just harder to justify the other movements. Alternatively prem/squad*/event…where theres a will there’s a way (although i see a flaw in that statement!)
Bristol Buckingham, the missing twin in 3 generations. The worst version would be perfect WT fodder! (You will receive 1 for the price of 3, perfect snail economics!)
B.1 - major handling issues delayed the type to the point it was nolonger viable in its intended role. Failure #1
Buckmaster T.1 - after cancellation two unfinished Buckinghams recieved a major rebuild and a new name. Yay, successful at last and a further 108 followed.