It looks like your in Tennessee, that part of the country has a lot of used Ml's available.
About the only issue with any used ML is the condition of the bore, left un-cleaned or not clean properly a rifle bore will rust quickly and the gun in the hands of a novice is worthless.
However, if the bore is clean and shiny, there is little more that can go wrong with these things that the members here can't help you overcome or repair cheaply.
So I'd suggest checking local Pawn shops, private sales, the list with craigs name,,, and at least see if there's anything that catches your fancy.
You'll need some kind of light to look down the bore. They make a "bore light" for around $10-12, or you can use a small "bobber light" made for night fishing with bobbers, they're small enough to drop down the bore and usually $3-4 at a sporting goods store.
You might be able to find an old CVA, Traditions Arms or T/C for $200 or less with a clean bore and have a decent starter rifle.
If you find one, come back here and describe it's condition and we'll help ya.