If you had the money, you could go with both changes. Carbon Express 3-D Select 200 or 300 for you. Carbon Express CX 100 for your wife. ( I'm not sure if the 3-D Select comes in 100 or not. If they do, go with those) As for a sight, HTM has a long range sight that gives you and extra inch of vertical drive which will help you to get your distances in. They are very durable and they give great service as well. They are made in New Albany, PA. Here is their web address: www.htmbowsights.com
Also, move your sights in closer to your riser if you can and that will give you more room for longer distances as well.
Good Luck and hope this helps. I only shot 25lbs. when I first started and these are things that helped me with longer distances.