Well I don't know what your budget is but...
https://classicsteelbody.com/collections/bodies
The electric conversion is off-the-shelf.
https://evwest.com/catalog/
The electric conversion and body shell run US$17K each. The doors, nose skin, suspension wheels and tires, wiring loom and paint would eat at least that much so US$50K to have a better camper than the ID.Buss.