I wouldn't want to sit in the water either. Until they invent some doggy waders I would'nt ask her to. If it makes you uncomfortable it'll make your dog uncomfortable too.
YEP, look up sportstands on google. I think coon river kennels sell them. They are heavy and expensive, but they are worth it. When i say heavy i mean 40lbs or a little less maybe. cost, around $150. I bought one last season and it makes a world of difference. It gives the dog a nice dry place to sit and more importantly, it gives them a place to sit. The dog won't move around or wonder off, because it has it's PLACE.
I have let some buddies use it for their pups first hunts. When a puppy is first out in a hunting situation, most times guys havn't tought them to be steady or still, the sportstand does that really easy. The pup likes being up and out ot the water and won't leave the stand.
I have seen many home made ones and as long as it works for your type of hunting then it is good.
.....you've got to ask yourself a question: 'Do I feel lucky?' Well, do ya, punk?
Die' en ain't much of a livin' son.