ITXPlus: A ITX Sized Macintosh Plus Logicboard Reproduction

[max1zzz]

1) Are the "long pin" pin headers on the port board 19mm or 17mm? (I lost one. My ruler says they're 18mm on the nose, so it's off, but I don't know which way.)

Pins are 12.7mm in length (Which is the lengh of the pin above the plastic part) specifically they are these ones https://uk.rs-online.com/web/p/pcb-headers/2518351

3) @max1zzz specifically - When I was removing a RAM chip I soldered on backwards, I found a loose capacitor (one of the tiny SMD ones), for some reason stuck to the underside of the RAM chip. It may have been loose on my workbench from another project, but I have no idea.

Could have been form my bench too there's far more random SMD components floating around n there than there really should be so it might have got stuck on there when I was desoldering the chips form the donor stick, either way if you can't see anything missing from the board it's not a issue

2a) Any recommendations for a different brand of flux? Mine ate through the solder mask in spots and other spots are still "sticky" after several rounds with rubbing alcohol and a soft toothbrush.

Personally I used either one of Stirri's water washable flux pastes (I can't remember the exact tone off the top of my head but they are all fairly good) or Chip Quick TF43000