Just to nit-pick a bit here, if selling a set it is often the case thay different denoms are worth different amounts (just as TCR prices each denom differently).
I'm being lazy, so didn't read if this was a set or all of one type of chip. That aside, often a seller will set a different price per chip when selling a complete lot vs splitting (big difference in the amount of work to transact/ship to 2+ people).
For that reason I think a dibs depending o split price is reasonable. Sellers sometimes have a very different idea of what the value is per denom than a buyer may have and premium split pricing can also be 10%+.
Just another viewpoint.