Found a couple i30s in our local salvage yard in good shape so got the cluster from them to see how much work this would take. I wanted to keep original mileage(my 5th gen is now at 323k). I tried the chip de-soldering but failed on the i30 board so had to explore options
With modifications to the plastic board and the PCB holes for the gauges, the 5th gen board can fit into the I30 cluster. Next project replace climate control buttons as they are pretty scratched up! Pics below.
Before. Stock 5th gen.
Black out effect of I30
I30 gauges with LED backlight instead of stock EL tube.