Another challenge

I thought I had better check to see if I could get a trailer sorted for when I fetch the kit and donor parts. Well in Sweden just now it's winter and in winter it seems all the trailers available for rental have winter tyres with spikes. That's okay in Sweden but in Europe spiked tyres are not allowed! So what do I do? Wait until the 1st of April when the tyres are changed; like hell no! So far the solution is to hire a 9m³ trailer with spikes which also has with it summer tyres and then change to summer tyres at the border! It's a real pain but definitely doable and probably the only choice I have. I’m not sure of the consequences if I drive without changing them and get caught!