Oscar, I am building a second PiDP-8/I kit that I bought, unassembled, from a gentleman in the UK,  a couple of years ago. The circuit board in the kit is labeled Rev 2.2 2016-02-16.  You call this the 2016-18 version. This version did not come with the LED spacers or the LED cover bracket and the switches have a much larger front metal piece and have mounting holes in them. Would it make sense for me to buy the LED spacers, LED bracket and possibly the updated PC board for this kit before putting it together?  If so how much should I send you? What else would I need to upgrade to go with the newest PCB? If I don't upgrade the PCB, Are there any cuts and jumpers that I should do before assembling the circuit board? What is the correct deposit switch inversion for this board? Will I have any problems running any of the Raspberry Pi versions on this kit (Zero through 5)? I will be benchmarking the new build of the PiDP SIMH software on a bunch of different Pi's so compatibility is an issue. Thank you,           Mike P.S.  Is there any chance you will be at VCF Midwest this year?