I know about the different versions of the truck, I researched mine before and after I bought it, I'll have to figure out the suspension cause almost all T600s, especially the As and on, had KW 8 bag air suspension, very very few had spring suspension.
I know the AMT kit has its issues but its the only T600A kit I've found with the hood style mine has, suspension, day-cab conversion, filer and all of that I can do, but I needed a good base to start with.