Just sent you a PM, but yeah what everybody said.

Don't worry about rust, bulgarian climate is dry, just use common sense, dry the blade after shaving on a towel, or with a piece of toilet paper, not touching the edge, then leave it open to air dry any residual moisture. Just don't shake it off, as that's a recipe for a quick disaster when you hit the faucet or the edge of the sink.

I bet you can find a barber hone for cheap in an antique shop somewhere and that could be enough to maintain the razor, or alternatively pasted strop, or I hear pasted balsa wood is even better. If you're to have one stone I'd get a small belgian coticule. However you should wait few months before investing in that.

You'll need a strop as well, but you should be able to find very good quality leather in bulgaria for very cheap. In fact if you find the right shop chances are an old person there will know exactly what you need.

Shipping to bulgaria is as expensive as shipping to other places in europe. a razor is fairly light but USPS's rates have gone up and the best way may be the flat rate priority mail envelope for $11.