Build Floor/seats for inflatable?

Hey guys, I have a 10' Solstice inflatable (this one: http://a.co/dloPHT5) which I use to fish the river down the street from my house. Usually it's me and my son or one of my buddies, sometimes just me. I keep the boat partially inflated all season and top if off right before going out, then throw it on the roof and strap it down loosely. It's such a short trip that this works well. Once we arrive I throw in the gear and hook up the trolling motor+battery and we're off and going in about 5 minutes.

I like this set up a lot because most of my trips are 1.5-3 hours and I feel like if I had anything more complicated I wouldn't get out nearly as often.  But, I'd like to be able to get a little higher off the floor. We sit on the sides and that puts you pretty close to the water. Plus, if the temperature really drops the boat can "deflate" a bit and then sitting on the side isn't so comfortable. No matter what, it's definitely not all-day comfortable. I've seen pictures of people building floors and installing seats in their inflatables and this seems like a great solution.

Has anyone done it, and how did it work out long-term? I was also considering a small pond hopper or jon boat but I have a small SUV and would need to get a trailer and hitch, etc. If the wooden floor isn't really worth the effort I'll probably go that route.  Thanks!