Jeff Richards made some really good comments.
i would echo that length also makes a big difference in moving stuff around. my favorite boat in my inventory has become my 14 foot petrel play - mostly becuase it is simply easy to move around. both light and not so long. i also have longer kayaks and have built the Chesapeake 17 LT and the Shearwater.
on weight, in the Okoume Plywood boats, you are probably going to be in the 4O LB range. but builder skill can make a big difference in weight so at the best end (high quality builder) you can acheive the weights that CLC publishes. but as the builder skill goes down it’s easy to add a lot of weight. so unlike a production boat, the website may give you a sense of the best possible outcome, you really need to inspect the boat carefully and bring a scale if you want to know what it weighs.
if you are buying a used CLC kayak, i would only do something you can see/inspect. but i noticed that there are a lot of boats on facebook marketplace as well as ebay that don’t show up in CLC homebuilt boat bazaar and occassionally in craiglist congregated in water-front areas.
you could also potentially put a ‘boat wanted’ advert on the CLC site….as sometimes someone is not selling but if they have what somebody is looking for, it can make somebody interested in doing a trade.
i would als encourage trying out anything and depending where you live, CLC maintains an owners list with locations and people who are willing to let you try out their boat.
if you are close to annapolis, i would come down and visit CLC.
but i can’t overemphasize the variation in construction quality and weight homebuilders have. and used boats, if not well cared for or built well from the beginning often develop discolorations and rot…so a thorough inspection of what you are buying and a look inside the hatches with a flashlight will quickly help you understand if you have a well built/cared for boat or something you want to avoid.
on a final note, a well cared for, well built CLC boat represents incredible value, in my view, of what you could get in terms of weight and peformance vs a manufactured boat. they often sell for less than the current kit price just because there is not a liquid market for homebuilt boats and when folks want room and cash to build their next boat, they often just want to get the boat to a nice new home and enthusiastic owner…..not get a return for their labor.
h