I tried several places to have mine done but once I mentioned 18" wheels, they all sucked in a lot of air and pointed me in the direction of an imaginary dealer.
I just happened to mention it in work one day to the logistics manager who surprisingly said, "I'll do it for you no problem" and guess what? He did. Turns out he was an area manager for Quick Rip throughout the North West and something that he aquired in his time in the game was a 4 wheel laser alignment thingy me bob.
I took the car to work, made him a cup of tea and listened to his tales of rubber from over the years as he handed me the autodata book to find out my correct toe in settings.
Turned out my nearside front wheel was toeing in 4 mill which surprised me as it was the off side that was injured in its accident.
He showed me the way the set up worked and got me to do the track rod unscrewing and the adjusting and then showed me the results on the laser display.
Sorted.
It cost me a cup of tea, a few beers and a replacement battery for one the lasers cos it was on its last legs. :D