Buy a second DX-399 if you can find one. Either that or a Sangean
ATS-606. It's clear that you like the radio a great deal, so why mess
with a good thing?

I own a DX-399. I bought it when Radio Shack lost its mind and dumped
the Radio Shack brand SWRs. I think it is a terrific little radio. Its
oddest likable attribute has to be the multiple voltage wall wart. With
the included adapter, you can use it in Europe on 220 Vac.