Hi Momchil, it's silly not to communicate in Bulgarian but since you've asking in English speaking forum, we'll do it that way.
Few questions: Did you ever tried finding answers or appropriate blade in some of the Bulgarian forums: Metal Blade, Bladeforum and so on ?
There are tons of good knives for sale constantly there, including Moras and Falknivens, used, new.
Recently I got a forum fixed blade from one of those forums and it is outstanding outdoor knife, it wasn't terribly expensive but it worth every penny IMHO so this is a good option, to look for some of their forum blades:
Another option would be to contact some of the local knife makers in Bulgaria trough some of those forums, they will help you to determine exactly what you looking for and will make pretty much out of any material, steel and so on, that suits your buget.
Most "bushcraft" fixed 4"-6" blades with wood or Micarta handle, made of 440 or higher grade steels will run you about or below a 100 Bulgarian leva, you will never find such prices for a custom knife in a store.
I have a custom knife made by this knife maker and I'm very happy with the quality of his work and price, you can check him out in his website:
http://vandi-knives.com/?page_id=25
In regard of the shipping cost the situation is very simple: If you purchase something from a store/site here in the US, they'll charge you shipping ( usually around $30 for a knife with size as the mentioned before Bocker) plus insurance for the package. This is perfectly normal, this price is reasonable. As much as I'm aware, and I was sending knives to Bulgaria for the last 5-6 years, $70 is much more that anyone should charge you for shipping.
Almost any knife will fit in one of those padded envelopes, the rule is - no small package under 4lb and $20-$40 value will go to Customs in BG, those packages are delivered straight to your address, so you are eliminating the Customs tax, usually about 15% of the stated value of the package.
Such package cost about $15-18 with First class mail and it's delivered for about 10 business days. I never had lost package this way.
Just as Snippy, I'll be happy to help you but we need to have some idea what are your limits. Let's say, you're looking for a knife that will get to you for total of $100, you are looking for a 5" or 6" or 7" blade, I learned that you have problem sharpening hallow grind ( which I find strange but anyway) so you may not like to have hollow grind, we need to know such details...