1. The price depends on location. In my area, nice ones go for a round $400-$450.
2. If the Egyptian '49s receivers are cut for standard 8mm strippers, then YES! Tons are available.
3. It is dirt cheap right now. I can't really give you a price as that really depends on the maker. The Turk stuff is almost as cheap as Wolf 7.62*39. The price does however represent the quality of the ammo.
4. Accuracy-Equal if compared to a standard Garand
Reliability-Not as reliable, but you have to consider that the Garand is VERY good in this category
Trigger Quality-Can vary from rifle to rifle, but the Garand probably has a better trigger overall.
Recoil- The same on average, but the '49 has an adjustable gas system, so you can tune things a bit.
In my eyes, the '49 is more of a shooter grade collectable than a commonly used plinker, as non corrosive ammo can be expensive. ALL the cheap ammo is corrosive, and you will have to clean the rifle using corrosive cleaning techniques to ensure it is in will stay in good condition. I frequently shoot corrosive ammo in my bolt guns because cleaning them is a snap, but I only shoot it in my semis if I am prepared to do a GOOD and PROPER cleaning job.
I guess what I am trying to say is that if you are looking for a powerful semi automatic rifle that you can shoot often and cheaply for years, you might want to look eslewhere. .308 guns are much more practical in this respect as almost all is non corrosive, and it is currently very cheap. If you really want the '49 though, I'd say go for it!
Mine in .30-06:
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