I'm left handed, and shoot a VZ 24 (Mauser 98) action in a right handed stock. The action came cheap, and I tell myself it is only "clunky" if I muff the first shot. Hence, while I'm doubtful I have Lee Harvey Oswald reload capability, I make an effort not to need it. The kid will figure out what works best, and the reasons why that is for him (for me, its 'cause I'm cheap) if he gets some time with both types of gun.
Best,
Ted