Thanks for the replies guys. The newer cones on the speakers are ribbed with cloth surrounds. The cab was used for home stereo use so I think they were re-coned for that purpose. In the mean while I cleaned the tolex and I put a couple of Peavey Black Widows(8ohms each) out of a '70s peavey cab as my head only has 4ohm outputs. I'll try removing the spray paint from the grill cloth tomorrow. I tried on a corner with goof-off and it worked OK, no damage to the grill cloth. The JBLs are 16ohm each though I get DC resistance of 8ohms when I measure them so the new voice coils may be 8ohm but I'm not sure yet so... I placed the JBLs on the Peavey cab and will test them in there with a borrowed amp probably this weekend. Also, the corners and handles are replacements. Luckily they are both available on ebay. I'll probably get the corners first and leave the handles as they are for now. Oh, and by the way the grill comes off. It is not attached directly to the baffles.
Cheers,
Ilyich.