Good Screens tend to go for upwards of £200 on eBay in the UK, (current exchange rates make that near $400 USD!!)
The only option is to look for another TR with a faulty Mainboard, or that’s been damaged in some other way but still has a good screen on eBay, you wont get it for a song but it will probably cost you less once you sell the other parts you don’t need off like keyboard / HDD and anything else it comes with that’s useable.. or you could sell or part out yours and buy a good used TR on eBay..
I’m sticking with the TR for now because I love them, and a recent SSD hdd has really transformed it, (see SSD HDD topic).
Newer T / TX series are not much improved performance wise and seem cheaper build quality / more problematic / not as stylish. The TZ far to expensive at the moment, and unproven reliability yet…