Nice work so far! You can work up from the 200 to 400/600/1000 before polishing. Be wary of over-polishing (unless you want it to shine like chrome) - often even new items like this were not super bright.

Also, Autosol is well respected in the motorcycle community, but I also like the cotton impregnated polishes like Nev-R-Dull for the final polish.