Basically ive got around £100 each to spend on oil pressure and oil temperature gauge. For that sort of money whats a decent brand to go for? Must be electrical, not interested in mechanical gauges.
Look at SPA they do a dual gauge , with adjustable warnings , and outputs ( you can turn on fans etc)
PLXdevices are what I recommend and use.. CANbus linked, can display many things through 1 gauge, set parameters, data log, etc.. Also has output that can be used as an Input into a standalone ECU..
I had pro sport electronic gauges on my old 14, I know there well below your budget so you could get both of the price of one! But they were very good IMO. And didn't look too shabby either.