Mine was in a similiar state to Mike's, no carpet or door trims but the bits needed to make the compliant and niceties work. Though I had the sceen in and wipers, as I do remember Bernie being a bit iffy appearing without any screen. The wipers are probably the hardest item so if you can do a Mike wind screen it will save some time.
I also had a heater insitu but no air to the screen but that's ok without a roof.
Keep on planning but talk to Bernie to get the program on the go.
Cheers