I'm not sure what team you were watching but Payne is about as true of a 5 and banger as you can get, he was dominating the tournament games at the 5. They badly need 2 guards and probably a backup 5 to Payne.
I don't know that I'd call him a "banger" per se. "Banger" normally refers to a blue collar guy who is more reliant on size and strength than quickness or skill although some "bangers" would have some of those attributes. I just think Payne is quicker than most players his size.
Backup 5 would be the trickiest recruitment of those I think. There are fewer available players of that size than other sizes and some of them are just flat out awful. You couldn't aim too high (because a backup role at a lower level P6 program just wouldn't be appealing to players in the top two quarters of those available transfers) but you don't want to go too low either. Perhaps a good recruiting decision would be to get a big man who has some abilities that are complimentary to Payne's (like maybe one who can hit mid-range shots and free throws).