Hi Rami
As to performance of these aircraft - that's down to Uncle, I just do the heavy lifting
Re : Lublin R-XIIIs - I suppose it wouldn't take much to add them to the campaign, after all the landplane performed the same function as the RWD-14b.
There were only twenty floatplanes made, one of which tried to find the old battleship Shleswig Holstein in Danzig Bay on the night of 7th Sept 1939. It failed in that and dropped its bombs on Danzig instead. All eleven aircraft of the Naval Air Squadron were destroyed in a German air raid on their base at Hel the next day.
I've done a 'take off/landing' mission for the floatplane using an approximate 'airfield' at the Hel peninsula - yours if you want it.
baldy