Unimog Club UK

I know this is an old topic...but I,m assuming this is a working Mog ?  hence HGV test   and the exhaust brake....my U1300L was registered in UK as a tractor, so no test.....I was lucky bought it at 44,000kms on the clock almost new......still only 47,000kms and no rust thereabouts...every year I get my WD 40 can and spray all around under the mats......and into any holes...8 years all still as it was.