You are going better than I. I can't seem to get past $100 bucks. That's what I had for fun money then it turned into $20 with a scope and pellets purchased in a week!$450 would be burning a hole in my pocket for sure!
Well I am about to thin my collection by 2 or 3 rifles Probably the TX 200 MK III , Air Force Talon P and maybe my Benji 392. Either a Slayer with wood stock or the Flex Probably .308 or .357 still undecided on the caliber. Once I have enough in the pay pal account I will make the final decision. For now I have my .30 Marauder project to distract me