So, the Italian tech tree is a little lacking in certain areas, so some of these gaps could be fixed with the following means that the Italians used after having captured them from the various air forces that were their enemies (UK, France, Yugoslavia).
Spoiler
(I know it would be a choice brutally hated by Italian players, but Gaijin adds almost no planes even to pay for them).
Agree to the 2 German ones - i was aware of Ju 88s and 217s (night fighters) in service.
Even with the artificial loadout limitations of the Ju 88 A-4 (Bomb load is max. 3.000 not 2.400 kg, missing loadouts like 2 x SC 1000, 4 x SC 500, SC 1800, missing LMA/B mines or the SC 2.500 bomb, etc.) and having just the rank II - the Ju 88 might have some value as imho the survival rate of domestic Italian bombers at this BR (at least in Air RB) is simply too low…
And for the A-4 there was a field kit available - to replace the horizontal bomb sight (not dive bomb sight, 2 different things) with a flexible and/or fixed forward firing 20mm cannon. You find a lot of data in the old forum, the involved tech mod (look in the Swedish aircraft section) was not really helpful.
Furthermore: The Ju 88 A4 is technically quite familiar to the torpedo bomber version A-17, so in case gaijin wants to help out the Naval player base - easy going, all they have to is to remove the gunner gondola and the air brakes and to add a small bulge to the airframe and strap 2 torpedoes on it.
The rest of your proposed planes - rather not a fan…
The problem is that it is difficult, since much of the data has been destroyed or forgotten over the ages… so, it can take a bit of time to find the required data
