Just curious, do you really want to shoot someone's reloads? No license, no insurance, how experienced? The most experienced can and most likely will eventually make mistakes.
Does the loader want the liability of loading for someone else?
the problem I see so far is there isn't a set dies I can find in a quick search but Redding will make someone a set for about $135 with an 8 week delivery.
I did find 1 box Barnes 375gr XPB bullets...in the quick search most everywhere else is out of stock.
Components are as hard to come by as Ammo is. Maybe you will find someone already set up for the 500 willing to part with some their consumables for hunting season.