GunDraw,
Dude, DON'T DO IT.
Look, sometimes it is OK to buy less expensive stuff cause it will work OK but not be as durable maybe or look as good.
In this case, believe me, any mount other than top quality for an M1A is a waste of money. It simply will not stay put so scoping the rifle is a waste of time.
You would be better off buying the best mount and a cheap tasco scope, than the most expensive scope and a cheap mount. You would shoot better with the good mount and cheap scope.
Best bet buy the ARMs.
All of this is irrelevant to my personal opinion that the M1A/M14 is a piss poor platform for optics anyway. But that is another story.
Lastly, on the magazines. Do not buy them. They are most likely USA which may or may not work. At $11 a pop seems like a deal. Except you will not get them all to work, if any of them do. If you buy 6 of them you spend $66. You can buy 3 excellent USGI mags for that and they will work for years to come.
In these two cases you do get what you pay for. In the case of the M1A scope mounts, you don't get anything for your money with the cheap ones.
Good luck