I've just been going over the comments everyone as posted and I think it would be ashame if you stepped down mate. You staying on as suggested in a sleeping capacity and then delegating stuff seems like the best idea and you sound happy with the idea.
Like offered before I am more than happy to spend some of my time working on and promoting the AOC in whatever capacity I can.
tbh I am active memeber on a few sites and I have not found that the sense of community and the help we give each other here is matched on any of the others. I think it really would be a loss to see the club on a decline when we can do something about it.
How about setting up a new list of staff for a start and seeing who still wants to work on/for the club and who wants to be just a member? Or how about regional heads, that oganise local meets then the regional heads can organise convoys etc for full club meets on a regular basis and get all this info on the site.
Whatever you decide mate, good luck with it and thanks for the work you have put into the club so far.