The decision for me would pivot on the action of the donor rifle. For that application, I would want a rock solid CRF action.
If not CRF, then I'd sell the donor and buy a 9.3x62 in a CRF.
BTW in this market you might get more for the donor than you think

Carry what you’re willing to fight with - Mackay Sagebrush

Perfect is the enemy of good enough