Short 8'-9' jon boat usability?

[emblem75]

Hello! I am considering purchase of a cheap old 8ft. (approx. 41" wide) jon boat and was hoping the experienced users here could shed some light on the usefulness or uselessness of a jon boat in this size. I's unable to trailer a boat and I do not have a driveway so I've been stuck using car top only vessels: small sit in kayaks, Radisson canoe, Portabote etc. I found an 8ft. jon boat for sale on FB marketplace about 1.5 hours away from me for $250. I'm thinking it might be cool to try out as I've always wanted a jon boat but was dubious on the reality of cartopping one. Will this be worth pursuing for someone who solo cartops and fishes primarily smallish, relatively shallow lakes.? Or should I stick to my initial (much more expensive plan) and pursue a wide, capable kayak such as a Nucanoe U10 with dolly. It will be mostly solo fishing occasionally with my 12 yr. old), I don't pack a ton of gear, 2 rods at most and a small 30lb. trolling motor. Does anyone have experience with these old 8-9 footer jon boats? More stable than a wide kayak/canoe? Worth the trouble? Thanks for any info/opinions you can provide!