What about taking the plunge buying some gear and doing it yourself.
That way you do a bit at a time more often and get some exercise in the process. You can do most of a boat with just a snorkel and a big lung full of air. I am 61 and still doing my little boat every week. And often other peoples as well.
You will need a good wet suit with hood gloves and boots then a weight belt to get you down to neutral bouyancy. Mask fins and snorkel and finally a scraper, rag or scotch brite.
olewill, March in uk....do you want him to get hit by an ice floe or attacked by polar bears? Makes me shiver just looking at the 'oggin before June at least. /forums/images/graemlins/laugh.gif