Good call, I have a docking port too, I forgot it has the parallel port. I have a couple parallel port intronics pocket programmers as well as an old school parallel Data IO that haven't been used...

Dell D630's have been my go to. I have one with WinXP, one with Win7 and another that is dual boot WinXP and Win10 SSD. These also have a serial port and 4 usb and usually ebay for ~$100. :jfj:
...