I dont know if you guys do forum mod conversions but there is one mod from another forum "IPB" that has a battle system on it, if possible could that be converted to smf? Again I am willing to pay for that as well.
This is the mod im talking about,
http://mods.invisionize.com/db/index.php/f/7049and here is a site with the mod installed,
http://www.1emulation.com/forums/index.php?act=atkshopI think you need to be registered there to see the full mod in action, under your avatar in a forum post, there is an attack button on other users and there are also some hp/mp/exp stats as well.
If this is possible, I am willing to pay to have this converted to smf. thanks.