Anyways....I need something light. 120-140lbs Jon boats are out of the question....too heavy. I fish by myself most of the time. I want something light that will work as I go through my 50s into my 60s.
A fishing Kayak seems nice...but have never used them. Seen some good deals at Costco.
I'm not against a 'small' inflatable, but even if it doesn't come with an electric pump....I would want the option to be able to use one for it.
I don't need it to be able to use an electric motor. I do have a jon boat for those few times I fish with someone else that can handle my electric motor.
So sounds like you already have a jon for multiple people so want something light for single operator.
How much weight do you think you can handle? That will very much drive the decision making.
As others have said, the lightest PWC is going to be a frameless pontoon that's probably 30-40lbs
if you really want a hard boat, then the lightest new manufacture is likely going to be the 1040 at 87lbs. If you put a set of wheels on it then you can roll it around or load it quite easily, but probably still need to be able to still lift 50lbs or so
If you're willing to consider used, look at the 80/90s era 9' Flyfisher or Springbok They are apparently 70-ish(?) lbs if you can find one.
If you're willing to consider plastic, there's a local company (Backwater Boats) that makes an 8' rowboat that's under 70 lbs. I think they are meant as small tenders for sailboats etc, but apparently people do fish out of them. I've seen them at a boat or outdoor show, but have no other opinion.
There's also the Frog Boat that you see on the SFOTF tv show. Honestly doesnt look like a very good platform, but apparently the hull is under 50 lbs, since the pontoons are detachable.
Final option is to find/build/commission a stitch & glue wooden rowboat. I've seen on the internet ones with hulls made from a single 4x8 sheet of plywood that are supposedly 50-70lbs depending on thickness of wood and how much durability you're willing to sacrifice etc