ok
spitfire: spn of 11,2 meters, 6 guns, but can only cary a 230kg bomb (razor equivalent)
And indeed a bomber with only 3 forwardfiring guns would be a good plan in my oppinion
(and a mustang was able to cary 2 500lb bombs (1000lb in total) while the Yokosuka D4Y (Japanese dive bomber) could cary 1,765 lb of bombs, and the SBD could cary 2,250 lb of bombs)