I know there are after Market conversions out there, but there are pros and cons on both sides. I also thought about it and Friends of mine who have Chain, highly suggest not doing it, a properly lubricated Final Drive chain throws chain oil, your rear will always be a mess.
On the Plus side, you can make a roadside repair with a chain, Aint happening with a Belt, although a Belt will always outlast a chain. On the Other hand, if you piss someone off, they aint cutting your Chain if you have one, they might Cut your Belt though, The Belt should not feel like it's Jumping a tooth, Might be a Clutch Issue? If it's tightened properly, you couldn't skip a tooth if you tried.
Belt is always going to produce less noise. Chain will give you a more possitive pull but at what cost? I'd rather tear up a belt then a trans.
Just some things to consider.