Have a hard top Vanagon that you’d like to camperize with a poptop? North Westy, an outfit in Washington state, will convert it for you for around $8500.
The conversion will look factory, down to the Westfalia decals on the top 🙂
They do all sorts of other cool work on Vanagons, including Syncro conversions ($20k and up) and Subaru engine swaps.
I’ve added them to the van pop tops page.