Morning,
I just acquired an old 3001 Pro a couple of months ago. It came with a 486RC2 ballhead. This was a second tripod for me - for my second camera body, so I am trying to keep the expenses down, by using this head - and possibly just replacing the clamp - converting it over to arca swiss rather than RC2.
So yes, it can be done, and I have seen other heads on the 3001.
By the way. I find that personal preference play a big part in ball heads. Personally I do not like the 486RC2, as its a single lever to rotate and level it. It also takes me 3 hands to work the clamp, hold the camera and release the safety.
