Hi , I see that you are in Europe refurbishing your rig .
Beware that in Europe there are strict laws on gross weight of vehicles , and driving licenses allowed to drive them .
General rule is 3500 kg for a standard vehicle fully loaded .
And it applies also to a standard driving license .
Over that weight , you go into a specific driving license and the vehicle is no more a car but a truck .
As far as you Toyota is clearly heavily modified , and well over 3500 fully loaded , you could enconter some police check .
In case they find that your driving license is not up to the weight of the vehicle , despite the fine , you are not allowed to continue your trip .
Vehicle will be towed and stored till a fully licensed driver will pick it up .
Might never happen , but by the look of the rig you have , it is not a remote chance !
Beware !