Which model for Laserjet 6MP

[tj]

I am trying to install an HP Laserjet 6MP using a USB to parallel converter. I go to localhost:631 and scan for printers and it is found, at least it comes up in Local Printers, along with HP Printer (HPLIB) & HP Fax (HPLIB), I select it and go on and the Name and  Description are already filled in and it is listed as usb://HP/LaserJet%206MP and I hit continue. I am now presented with four possible selections under Model:
HP Laserjet 6MP - CUPS+Gutenprint V5.2.5(en)
HP Laserjet 6MP - CUPS+Gutenprint V5.2.5 Simplified(en)
HP Laserjet 6MP - Foomatic/Postscript(en)
HP Laserjet 6mp hpijs pcl3, 3.10.2(en)

or pick a PPD file

Which do I need to pick? and, how would I know which one to pick not being an  expert, or any where close to it, on CUPS.

Oh yeah, CUP 1.4.3

tj