The huggers and the 62's were made concurrently, so I'd say just about every hugger will fit a 62. The 3000 head is essentially the same as a hugger. The later ones may be set up for lateral tilt or A series machine, but can be modified easily with parts to fit a 62.
We ran a 8 row 36 inch head "A" series head (with the beveled gears instead of gear boxes) on a R62. If it's a gleaner head, and not going back to the L2 days, I'm pretty sure it'll fit on your machine.