If you don't what to spend that much $$ on her first bow try the Barnett Vortex bought one for my wife to start with and its a pretty nice little set up for the ~$160. Goes form 15#-45# so it would be legal to hunt with in GA DL from 21"-27". Not the quality bow that the Mission would be but is...
If you have a 70# bow, it should be marked on the limb it will not safely go down to 50# mathews only has a 10# range on the limbs best bet would be to go to a bow shop and get them to order and install a set of 50# limbs. The bow will destroy its self if you try to turn in down too far and you...
I was thinking the same thing, but i bought just one of the Arizona ezfletch mini, and i can fletch a dozen arrows in ~30 min easily. If you want to try a multi-fletcher the Jojan holds 6 arrows at a time but only installs one vane on each arrow at a time.
Buy some arrow wraps, d a arizona ez fletch and do it yourself kinda fun ans you can make your arros look like what you want and be as picky as you want. Been doing my own for a while now and its relaxing.
You need at least a 350 spine at that draw length and weight. You arrows should be aprox your draw lenght so the tip/broadhead is about even with the front of the riser. A good starting point would be some gold tip 5575s
Try out a few compound bows....its kinda like golf, it will piss u off but you just keep doing it! I haven't carried a gun in the woods in 8 years. Nothing like the thrill of getting him in close.