You can try one of the $15 delivered Hong Kong eBay units. I used one on my vintage modified jazz and a bit if filing and a few red rolled screw holes and it fits fine. Good quality 5 ply black pearl.
The big issue is if the Squier II pickup is in the standard location. It's worth a try. Otherwise send a drawing off with about 50 bucks to a custom maker like pickguardheaven.
'73-4 Ampeg V4B, Ampeg PF350,PF115HE, PF115LF, 115 Traynor, 1962 Fender Jazz, 75 Gibson G3, '10 Squier VM Jazz, Squier CV 60's P Sonic, Squier CV 50's P blonde, Epiphone Thunderbird IV