Been a while since I've seen any Bulgarian Makarovs. I bought the last 2 my dealer had (perfect for me, since one had a well worn blue finish and the other looked to be unissued). Strangely, I've been seeing alot of East German Maks at area gunshows, usually in $250-300 range, along with the odd Russian commercial. Good price on the East German ones but I already have one and I'm not really looking to get another (no reflection on the gun, the German made guns have superior fit/finish). I have 2 Polish P-64s. One is 1968 manufacture, the other is 1973 (production years are stamped right there on the slide in plain view). I'm told that the later models are best, since there were small, but significant design changes made. Both have v. heavy triggers. Sights are so-so at best. I know a gunsmith who carries/shoots them regularly and he swears by them. Once I get mine out to the range, I may start carrying one.
OK, now for the advice section. If you positively cannot find a Makarov, but find that you want one, why not look into the CZ-82/83s 82s are available only in 9mm Mak and only as surplus, but some really nice specimens have been recently imported by SOG and others. The 83s are the civilian version and are also available in 9mm Mak as well as .380. These are first quality guns of exceptional design. I'm going to buy the next 83 I see in 9mm Mak (they're a little hard to come by, but they do surface) or maybe an 82 if I find one I like.