So glad to see that things are working out for you and that your making the strides necessary to get your dream off and running. I hope it works out for you to get these 2 mares you mentioned if they are what you really want, but if they aren't or it doesn't at the very least your husband is now aware that your serious about wanting a horse or horses, and while he has stated that he doesn't want it to be his daily job to take care of them I never saw you mention that it would, you plainly stated he didn't like them and they where your dream.
But he has agreed to help with the cleaning up of the barn, so thats a start, and while he may never come to love horses as you do, I think once you get them you will most likely see a difference in his opinion concerning them and he might possibly even really start to enjoy them, thats my wish for you and your husband anyway.
Good luck, and best wishes.