2015 RAV4 touch screen problems.

[Q.S.]

I have a 2015 RAV4 and have been having problems for a few years with inputting sat nav postcodes. This has now got really bad and is impossible by using the touchscreen and the only way to input a destination is by voice input (lucky I have that on mine) which can be tricky with some addresses. The screen also has problems with other functions but as I don’t usually change anything on there, it’s not too much of a problem. Has anyone changed the digitizer on one of these units (510014 on front panel, 86140-42240) and if so, where did you buy it from? Or had one repaired anywhere? 
There are eBay sellers offering the repair service but would rather do it myself, have found digitizer (from China also on eBay)but not certain which is correct without first stripping mine out. Thanks.