I've found that many women are more opposed to the blast from a brake, than they are to recoil.
From the sounds of it, she's got some very specific requirements that are going to be tough to compile. I'd hand her a stack of flat-green rifles, tell her to knock herself out and let me know when she needed the scope mounted.
I've bought a few "long range rifles" for women in my life. 20" Tikka CTR in .260 or 6.5 Creed is really tough to whoop in that role. Then it's not too heavy, not too long, doesn't kick bad, and is threaded for a suppressor (or a loudner)…. you can even take factory stock, and rattle-can it pink.