The 804 is a pan/tilt head the 486 is a Ball head. Both will work, and it's largely a matter of personal preference, but I find a ball head much more practical. To me, having to independently adjust 3 axis is a real hassle. It's try that the 486 has no true panning lock it's still quite possible to use like that. The 488 is also an option.
The only reason why I recommend the 486 is that it's a fairly stable, low cost head. There are lots of other options available if you're willing to spend more money.
Cheers