That's an awesome offer right there. I don't have anything that great to offer, but here's a tip BoltLover. Dillon will upgrade the 450 to use the quick caliber conversions like a 550. It's not free but its about as cheap as a Lee Classic turret press and for that little bit of money you'd essentially have a brand new Dillon for the price of a brand new Lee. That's one hell of an offer from medalguy.
I don't have much for .223 that I can spare and no .243 or .270 components. But if you shoot .45acp or .38spl, I bet I could scrounge up some brass and bullets. Maybe some 155gr .314 cast lead bullets for your Mosin (you'd need .30 gas checks). I'm getting over the flu and we got hit by snow pretty hard, but if you could use any of that stuff let me know and I can probably get it out to you by the weekend. I hope they find the dirty dogs that robbed you.