Yes that is a fantastic site for printing old files, I'll take this opportunity to thank you for it! Unfortunately as you indicate on it yourself, printing a Level 1 PS file on a modern printer will not work, even the early Level 2 (LW 7 driver) seem to cause troubles.
As for the Apple LaserWriter Utility, I did find this: http://developer.apple.com/technotes/qd/qd_525.html
Which also requires System 7.
This solution calls for some kind of conversion from Level 1 PS to Level 2 which can be opened under Preview in OSX or printed to a real printer under your tutorial. (you might add that to your tutorial Charlieman as the LaswerWriter 7 driver will produce a postscript file which can be opened under OSX and then printed out of Preview, even if it won't directly print to the OS X printer, which by the way works all the way back to System 2.0/Finder 4.1 per http://www.Mac128.com)
I was hoping for some way to upload the L1 PS file into the LW 7 print driver and use the resulting dialogue box to convert it to a L2 PS file. Possibly the PS Level one files can be converted under the System 7 LW Utility. I'll let you know.
As for the Apple LaserWriter Utility, I did find this: http://developer.apple.com/technotes/qd/qd_525.html
Which also requires System 7.
This solution calls for some kind of conversion from Level 1 PS to Level 2 which can be opened under Preview in OSX or printed to a real printer under your tutorial. (you might add that to your tutorial Charlieman as the LaswerWriter 7 driver will produce a postscript file which can be opened under OSX and then printed out of Preview, even if it won't directly print to the OS X printer, which by the way works all the way back to System 2.0/Finder 4.1 per http://www.Mac128.com)
I was hoping for some way to upload the L1 PS file into the LW 7 print driver and use the resulting dialogue box to convert it to a L2 PS file. Possibly the PS Level one files can be converted under the System 7 LW Utility. I'll let you know.