More accurately, from the UK to India and back in a VW T5, but the English couple who took the trip (Michael and Helen) called their website/blog RTW.
It’s a great account of the journey, with useful information on visas, borders and regualtions as well as the places they visited, conditions they found and the timing of the trip. it would be a very useful resource for any of you planning an extensive trip in a VW Motorhome camper.
One key point was their decision to go for a VW T5, rather than a type 2 70’s VW camper. They did try a bay window VW camper on a test trip, but found it slow and cold and were very converned abut reliability on what was planned to be an adventurous trip - overland to India via Scandinavia, Russia and rhe ‘Stans’ (Kashakstan etc).
http://rtw2007.blogspot.com/2007_04_01_archive.html
One final point; if you are going to do a trip - do a blog, it’s a great way of recording the journey and sharing it with family and friends as you go.
Closer to home, this family restored their VW motorhome and use it for exploring New England
http://www.vwcampersforever.com/travels-with-vw-campers/vw-campers-for-families