When I said "toy" , I was joking . I am sure that type truck has its place in the work force , BUT , my concern would be stress on the overall vehicle . Even if you get the weight down to were you would be legal ( i guess , since I don't know the laws there ) , you are running at maximum for its rating . Running gear , from the rear end to tranny to engine , ( which is quite small ) , are all going to wear faster .
Example : Here in Oregon , The company my truck is leased to ( as well as other companies ) , will add a " Drop Axle " in front of the drive axles that is air powered . Thus it raises the weight rating of the truck . Couple that with a 4 axle trailer and they are now running at 105,500 lbs. . Yet as smart as they think they are , they cannot figure out why trannies , rear ends , u-joints , suspension , engines , etc..... , all wear out much quicker than the 3 axle truck counter-part . Other companies have different variations , including maxi's , 40' + 24' , etc.... , all with the same result usually . They modify some of the equipment , but not the rest . That's why trucking companies that haul over-size heavy loads have trucks that are specific for their tasks .
I would of went a different route using a heavy duty used 3/4 ton pick-up , added or built a flatbed on it , then coupled it to your trailer . By adding the below link , you could have the best of both worlds .
Flatbed Truck Hoist Kit 5-Ton Capacity, 8ft. to 12ft. Flatbed | Lift Gates + Dump Kits | Northern Tool + Equipment
Fred H.
P.S. Also it would draw much less attention from the eyes of your local LEO's .
