skin on frame
I have not seen anyone mention skin on frame kayaks yet. You can get very light weight, strength, benefits of great design. Check out Brian Schulz over at http://www.capefalconkayak.com/The%20modern%20skin%20on%20frame%20kayak.html
You can do it
Start with modest goals…an hour paddle, then two, then it will take off.
Whatever you paddle remember that the getting the boat on and off the car is important. If it is too much effort you won’t paddle as much as you would like.
Yes a club is worthwhile to get started and lessons are really worth the cost. You will learn lots about paddling safely, and efficiently using the proper muscles.
I did not start paddling solo till I was 47. Now I am 62, female and taking multiweek solo canoe trips in Canada and Florida(yes the northern ones have portages, some long and unmaintained).The last nine dayer covered 150 miles. God Willing I will be doing this when I am 90.