I had to replace 2 walls including the window frames and insulation, the ceiling was also fubar so that also got replaced along with the insulation too...
The 'proper' caravan decorative ply thats supposed to be used I found very expensive, so I used 3mm ply for the walls, 20mm jablight flooring polystyrene material bought from a local builders supliers and the ply was covered with wallpaper
There was a lot of work needed for it to be used properly as the fella I got it from let it go to rot, I knew there would be quite a bit of work needed for us to use it, but in the end it was worth the hard work I reckon...
We also got a full size awning (Isabella Capri) which I swapped for a set of Saab alloys I had knocking around... they only stood me at £40 so was happy too swap them for a £800 awning LOL
The Miggy pulls the caravan no problem thanks to it weighing only 1040Kg unladen and 1400Kg fully laden, the only problem Iv found is the MPG really suffers if we find a hill as the MID then tells me the car is doing 8MPG....!!!!! LOL
This is our first caravan that we've owned but we're not new to caravanning as both mine and my wifes parents both had a caravan so we're used to how they are .....