Not really, the design is different indeed
When I had the fuel gauge on the right, I had a problem because I needed it on the left so I could put a gauge in where the wter temp was (electronic one)

I got some of the newer spec dials and plugged in to see if I could use them, it worked fine so just used them

I did not change any of the wiring at all, neither did I have to swap anything over

Don't mean to be rude, but you really are making yourself look like a right cock, I am right, I KNOW I am right, so just don't argue about it

You have some mk3 parts, that's why it's so fvvcked up mate