Not to kind of go off topic but, I would say with spray waxes like Optimum Polymer Technologies OCW, a one stepper is no longer needed. Therefore you should be able to use a very nice product like FP II or something like it and then remove it, spray on some OCW wipe off and walk away. That way you have a perfectly polished surface and a great looking and protective wax on top. This way you are not compromising anything. With a one step you are either giving up polishing ability or protective properties. IMO opinion that is a thing of the past.
If I were you, I would go FP II followed by OCW. Now I know the question about my recommendation is availability, he probably can't get OCW over there, can you? I know Autogeek and Premiumautocare have OCW, they ship overseas I think.
Just my .02