I'd also note that there's much more reasonable options: You could get a USB Parallel doohickey and run 98/XP in a VM on your netbook. If you're persistent about building you can get a 2006-2009 era Core 2 mobo with a Parallel port, or just get any modern motherboard and slap a PCI Parallel car in.

Point being, you're making this more problematic and complex than needed.