I am sort of a kayak Guru with two Warren carbon fibre kayaks(one a sailing kayak) in Fort Collins, two Pygmy kayaks at our winter home in Tucson, and a CLC 17 and Pygmy at our CO mountain cabin, all of which I haul in a kayak trailer for easy loading and unloading. Both my wife and I are in our 80's.
But for trips like you plan where I don't want to pull my trailer, I have a Sea Eagle Razorlite
473rl tandem which pumps to 10psi and handles like a hard kayak(it is made of drop-stitch technology). It weighs about 55lbs. I use a high pressure Sea Eagle electric pump which about takes 3 minutes. The longest time is clean-up following the paddle to completely dry it out.
I would consider selling it and buy two Sea Eagle Razorlite. 273rl drop-stitch kayaks. They weight 35lbs each so twice the total load and of course take twice as long to pump up. But, we both prefer paddling singles.