I hear you on that, I'm saving for a bigger tank which I hope to make him a nice aquaterranium. I was just checking on the UVB as you can't see it properly in the pics, so I was just checking, im not one of these guys who will say you need this and that, if u have the UVB that's probably the main thing. He looks very heathy, so I'm sure your doing a great job, both of us trying our best.
The basking lamp depends how much he comes out the water, my musk barely ventures out of the water so having the basking light on can be a waste of time mostly. Lol.
Keep updating with him, all of us are interested.