I'm not a huge fan of the rod tubes that sit up ontop of the frame, I think they make it difficult to exit one side of the boat and just basically get in the way. I've always done something like Kengore suggested except I only cut my slot to where the first strap hits. I forgot to take a pic of my set up this morning but it sits between my spare oar and the frame...Also don't over look folding your rods in half and putting them in normal reel-on type rod holders, it takes just a second and saves a lot of clutter around the boat. When I'm fishing I usually have a nymph rig and either a streamer or dryfly rig set up (depending on what's happening). I'll have another spare or two broken down. So having storage for one full rod/fishermen is plenty... break the rest down, especially dry/streamer rods they're really easy to fold.
This is what I'd look into on your rig....
The red line would be my first choice on your boat as it appears that there is a gap between your rear frame (and casting braces) and your side rails....i.e. slide a tube into that gap from front to back. The little black lines indicate areas I would think about cutting slots in. to aid in stowing rods. I would think one on each side, one set up for use from the front and one from the back. Putting two rods in one tube (from opposite ends) is at best a tangle waiting to happen and at worst a broken tip). You could bend the far ends (opposite the user) to follow you frame if necessary.
The orange line is what kengore is talking about and what I use. The issue you'll have is length. It appears your frame is around 7' (assuming 8.5 or 9' oars). Your rod tubes will run about as long as your oars if not a little longer, so there will be some sticking out past the bends of your tubes.
stripping baskets in my opinion are a complete waste of money and space. Do you stand, facing and fishing in one direction all day? Or do you turn and fish river left, river right, back and forth moving as the rower puts you on water or the river changes? If you're right handed and fishing river left you will be missing your basket by 180 degrees... if your facing forward you'll either have to hold your whole rod and arm in front of you or strip forwards to get your shit in the basket... if your casting river right you may get proper use from your basket. Keep trying without baskets for a while, you'll learn (and teach your clients/buddies) proper line management. It's a good habit anyways.