You need more revolvers and a few lever actions in the caliber of your revolvers. At a minimum, a Ruger GP100 in .357, a Blackhawk in .357, in .41 mag if you can find one, and one in .44 mag. A Redhawk or three in your choice of calibers. A vintage Colt Python. A vintage Ruger Security Six. A vintage S&W M17, which is chambered in .22lr.

Bolt action rifles in the following calibers: 204 Ruger, .223 Rem, 6.5x55 Sweden, and in .280 Rem A.I.

Now that I think about it, a Colt S.A.A. in 44-40, along with a Winchester 1973 in 44-40. A couple of Sharpes rifles, one in 45-70 for ammo availability, and another in one of the less popular calibers.

That's just for starters.