Which one is which (particularly in the last 2 pictures)? To me it looks like one is dominating the UVB (i.e. the one sitting closer to top of the branch). It's not just heat that they will compete for.
It does look like an overhaul is needed. Their tank looks too small (possibly a 3ft they're in now?), different substrate, thermometers and thermostats, better UVB. I know this isn't down to you but it looks like you (and your purse) might have your work cut out!
Can't really see their condition in those pictures though