grebe
Full House
Also, how I would run rebuys....which goes doubly so for your case where you have a smaller number of workhorse chips....is rebuys go thru the big stacks then to the bank. So, if player A wants to buy $20 worth of chips, he would buy it directly from a stack with a bunch of workhorse chips. Then, you give him the big chips in exchange for the cash. You could also just let the cash stay on the table in play and save the need for big chips if it doesnt screw up the legality of your game.