Click here and buy.

Minjin edit: Fixed link

Why pay $35 if it is questionable that you already have the original set, if you can just click a few buttons and get what you need here:
www.lilevo.com
www.lilevo.com Every Mitsu factory backup manual you could hope for .... and counting.
More stuff like "all versions" of CAPS clickable on the site here too:
click

Quoting Alpha Male:
While searching around for the astron family engine tech info to prepare for my cross country voyage, i came across this site that has all the engine family manuals in pdf.

I don't know if it's ever been posted here before but could prove valuable to someone. definitely was to me.

click

Or try the 'Library': https://www.galantvr4.org/docs/

I've found that the manuals on lilevo differ and are misleading/incorrect (specifically electrical manuals) when I was trying to determine the tb connectors/wire colors.