UPDATE ~ been living in my van 4 days a week for the past month and a half and done a bit more to him in that time!

Insulated the floor properly using left over bits from the roof and sides so a bit meat but nobody will see it!

~ before

~ after!

Covering the hardboard and arches was easy enough as the material was super stretchy and able to mould nicely, I'm doing graphite grey around the bottom of the van and a sand colour on the sides and roof to make it a bit lighter! Cost me £47 from eBay for 5m with 5 cans of adhesive spray, and they sent me the wrong colour so got a free roll (get in!)
At the moment I'm living in it whilst I'm working away from home got a single/double bed that pulls out, floors in and cupboard tops are on, next stage is cupboard doors and flooring to go in!
Today was the first time in a while I got to do anything to the van and it's been rainin on and off so tried to restore the black bumpers using the ole heat gun trick, still needs another going over and some back to black and it'll be perfect!
Before:
After:

Also had the starter motor, flywheel, clutch, and slave cylinder replaced last week, just in time I reckon the flywheel was destroyed! Van drives beautifully now!
Parking sensors and new bulbs, as well as service bits in the post to me hopefully get some more done this week.
Hope everyone's been a bit more productive with their motors recently!