Autosolo appears to be the same exact stuff sold under multiple different names on Amazon, often for less...
$250 is pretty expensive for a wheel alignment.
I was able to find a used set of turn plates, I think they're Hunter. Old, really heavy, indestructible. I currently use a SPC Fastrax caster/camber gauge with those, it's a single unit so no need to have a caster camber gauge and a wheel clamp.
SPC Performance 91000 SPC Performance FasTrax Camber Caster Gauges | Summit Racing
With the FasTrax, toe plates, turn plates and some practice you can get pretty accurate alignments. The turn plates can be really basic too, some people just use plastic and dish soap. Although having something with a degree indicator makes setting caster easier.