I had a lab for twelve years. She had a lovely temperament, but very bouncy and would escape any opportunity she had. Labs can be really hard work too.
We lost her early in the year and the house felt very empty. I decided I was too old for a pup and went for a rehome spaniel. I now have two working cocker spaniel boys who are 3 years old. Many people say they do not work well in a pet only home, but they are loving, friendly little chaps. Surprisingly they do not cast as much as my lab.
They can be very excitable and have chewed up several beds (their own, not mine!) They love children, love their walks and love people generally. They are not food driven so that can be an issue with training. One major problem is that if they get a scent they are hard wired to search undergrowth etc and forget all recall training.
I find them much lighter on the lead and I take them out together. One can be a bit funny with other dogs (not bitches) who run at him off the lead and hassle him, but the other is laid back beyond belief.
Sometimes dogs are rehomed through no fault of their own. Ours was due to the owners relationship breakdown and going back to work full time. This may be a good way forward for you to consider, without such a huge outlay for a labradoodle.
Forgot to say my dh's mum has a labradoodle. He is huge, very bouncy, nice natured, greedy and totally and completely unsuitable for an 80 year old lady. What the hell.