Apologies for the slow reply, wifi availabilty has been predictably sparse in France on our current trip
Some excellent advice so far :thumbs: . Just to add my 2p...
Deciding on a motorhome can be a complicated business and its worth trying to get it right - it can be expensive to have to change after a short while if your choice was wrong. Ideally layout of the interior will be the most important aspect to consider, especially with a lot of touring in mind so it would be best to visit a dealer (or several) to look around some variations to picture how they might suit your requirements.
Arm yourself with a list of essential requirements, preferred options and definite no-nos. Are you happy to make up a bed each night or would you prefer a fixed bed? If a fixed bed - are you happy with the daytime space it takes up? If not, then maybe a pulldown bed which then steers you towards an A Class or if height is not a problem then maybe an overcab bed. Shower room layouts can be important, some smaller ones are a 'wet' room whereas others may have a proper, or partitioned, cubicle. Are you happy to rely on outside mirrors for rearview when driving? If not, then a layout with a rear window visible from your rearview mirror will be needed etc etc.
Next would be the weight carrying capacity with your scooter requirements in mind. This would either have to go in an integral garage or on a rack at the back so a substantial payload (basically the difference between empty van and fully loaded) is needed and there needs to be enough spare weight capacity for the rear axle particularly when using a scooter rack as these hang well behind the rear axle and exaggerate the weight-load on it.
Larger payloads often mean going above 3500kgs gross weight so it will be necessary to have the right category on your licence which was only automatically included if you passed your test before 1997.
There are so many variations and everyone has their own personal requirements and opinions but as a start you have your budget in mind
Good luck with your search and let us know how you get on.