Actually the A models did have hard points but only inboard of the engine nacelles. These were for external fuel tanks. The B models added two more hard points increase loiter time aloft.
After a lot of mucking about all over the place here is some work on the Port boom, assembled, seams and joins filled and sanded, some extra ribbing in the wheel bay to improve it somewhat and hide a couple of horrible internal join points you just can fill and sand
and some extra stuff added into the air intake so it's not just a hole in the wing...