If she's still not sure yet, buy a Revo 11.
You can use it whenever/wherever you want and then you can have her use it to "try it out". If she likes it enough, buy another Revo11 or a Revo13 for yourself. Sounds like you will be going solo a bit more than you anticipated...
Or you can buy an Oasis or trade up.
Re the sun problem. My wife's ancestors are from the UK and Nordic areas. She can burn to a crisp in a short time if we don't get her in sun blocking clothing from hat to pants and use a good sun blocker.
Below are what we use to fend off the sun. I fly fish in the sun and hot California sun. I use Under Armor fishing shirts with the sun protection, Tilley hats, Glacier Gloves and a Buff Bacalava along with Banana Boat 50 Sun Blocker.http://www.coolibar.com/category/Women/ ... 0/2241.uts
Glacier Gloves great for paddling, fishing, yaking 50 UPF: My favorite fishing./yakking glove: http://www.amazon.com/Glacier-Glove-Str ... B001UE8DCW
Solar Blocking gloves: http://www.amazon.com/s/?ie=UTF8&keywor ... qs46uvt9_b
Tilley hats: http://www.amazon.com/s/?ie=UTF8&keywor ... 8hqcktht_b
Sun Blocking Pants for women: http://www.amazon.com/s/ref=nb_sb_noss? ... +for+women
Buff Face Masks and Bacalava http://buffusa.com/sports/collections/u ... protection
Last but not least: Banana Boat Ultramist Baby Tear Free Lotion SPF 50, 6-Ounces (Pack of 3) by Banana Boat (Feb 7, 2009) http://www.amazon.com/s/?ie=UTF8&keywor ... n91o0b3d_b
Sunblocking accessories for your Hobie from Hobie: HOBIE DODGER, Hobie Bimini Sun Shield.