"...so I can get rid of this crap..." Geezuz, you're easy. The mess Biggs makes can't be fixed with a broom. snicker.
.303 AP is collector stuff(you need a Spitfire, Hurricane or a BREN). DVIII ball, not so much. Anything from Dominion is collector stuff too. The Peters .25 ammo runs $85US, Stateside.
You really need to hit a gun show. Mind you, most of 'em are a fair drive from Mudford, I mean, Meaford. The Borden Small Arms Museum might, I say again, might be interested in the AP. I suspect they'd expect it to be donated.
.ammo-one.com, .oldammo.com, .rtgammo.com and mcpheetersantiquemilitaria.com are American. American values don't apply here.