Hammerite Overpainting/Clearing?

Hello people! First of all, I would like to say that it is clear to me that Hammerite is certainly not the means of choice on the vehicle. But let me just do it: The car (Golf2) is completely rebuilt. First of all, all attachments (axle parts) are completely sanded, treated with industrial rust converter, washed, treated with sticky ground, then partly tinted and then painted. As varnish is usually used Brantho Korrux. In the engine compartment instead of the sticky ground 2K epoxy primer of Epiform is used. So I would like to protect the whole story again with a clear varnish. What should I take from this paint structure in the engine compartment and on some axle parts Hammerite hammer stroke dark blue over it. I like this paint simply over the measures! Unfortunately, the paint should not be special oil/Benzine resistant. So I would like to protect the whole story again with a clear varnish. What should I take from it? As you see, I don’t only rely on “rust-protecting” properties of the Hammerite. That Brantho Korrux is indeed super, except for the use of clear paint. What a reme of the reg.