Horse lorry

Mercedes 814 horse lorry 7.5 big living and stalled for 4 horses. We own this lorry for the last 10 + years and it always got us where we wanted to go but unfortunately it was parked up over covid and we haven’t used it since. I tested it about 5 months ago and it failed on a few things so I got most of them done only one small bit of welding on a cross member and move the fuel tank so it’s it rubbing off The tool box as seen in photos. Because the lorry was parked up so long it started stopping after been driven for a while I presume it's dirt in the diesel so I never brought it back down for the retest. Since then I've bought a new lorry so I don't want to leave this sitting up any longer Would make ideal camper or with a very small bit of work this could be back on the road carrying horses