To keep a gloss on it, my plan is to use a product out of the US called Glisten PC. It is a two pack clear coat (fuel and UV resistant) made by POR15, the funny thing is that they use Australia as their example. It's wicked expensive (more so with the exchange rate) but I've not found anything else that covers all the bases. I only want to do it once, so better to stump up the dosh and do it right. If it doesn't work out I'll be quite cross and massively disappointed but I won't know without giving it a go.
I 100% accept this is what happens when OCD goes dancing with COVID19 lockdown but in my defence I am not taking pictures of bread or crocheting tiny couches for cats.

Rs,
Sol