I think you might prefer to have someone else tackle this for you. Vintage/antique pieces can be a bit daunting. You would have to first take out all the quilting stitches, then remove the torn blocks. Make new blocks and insert them where the repaired/missing blocks are. If there are no holes through all three layers of the quilt, and it's only the top that has issues, you'd have to remove all of the quilting stitches from the entire quilt, make the repairs and then re-quilt. It could be a very difficult task and if you only 'sew a little' could be rather challenging. Not trying to offend, just trying to give you an idea of what you would likely be up against so you can make an informed decision.
If you decide to have someone else do this for you, take the quilt to a local quilt shop and ask advice/recommendations from those folks. If you have no local quilt shop, see if you have quilt guild in your area. Someone there should be able to give you advice/recommedations as well.
Good luck. I'm sure your husband treasurers the quilt.