Failed Parallel Port on system, Recommended Easiest Upgrade Solution ?

Parrallel port has failed on my old computer , running Ubuntu 10.4 and EMC2 2.4.6 . Milling machine has Pico USC , Microkinetics Steppers , Linear Scales for Position feedback.  Old computer is a mishmash of crap that has no network capabilities.
I need the easiest upgrade path , for a computer and Software . Im old and not very tech savy!  I may go to a Mesa board if it would make things easier. Any and all recommendations!

The below is what I use for testing and messing around with Linuxcnc. I'm a little biased towards Lenvo, I have a couple of ThinkPads, 2 ThinkCentres and a ThinkStation. Never had an issue, my T530 ThinkPad is my daily driver.
Lenovo M73 Tower with a i5 CPU (avoid the SFF models)

You'll need a parallel motherboard port cable (otherwise you can't enable the PP in the BIOS) www.ebay.com/itm/256520010767

A small SSD is not a bad idea as well 128GB is enough.

You wont need to do much to your configs, except the small diffs from 2.7 to 2.9.