Hi Danny,
You got that one for a good price. Our friends across the pond pay a lot more than $1025 :-)
You should run the IODIAG2 test from the ROM tests list if it is present in your test set's firmware. It gives lower level information on the hardware installed.
The parallel I/F option may not be applicable to your unit depending on what standard of hardware is fitted. In any case a serial to USB adaptor is probably more useful for screen capture to a PC unless you have a parallel printer already. There is a handy serial screen capture utility, BTS, that works OK.
It is probably better (and cheaper) to use an external power attenuator than fit the 100W option. duming that extra 40W into the test set does not help reliability.
Robert G8RPI.