I do however have a new case for it. It is the same size as the existing case but it is not second hand.
Before I pull apart my existing case to fit it into the new one, and add a metallic shield to the huff and puff circuit board, I have drawn a complete circuit diagram showing all my modifications.
I have also drawn up an inter-connection diagram to assist me, and others, get the connections in the right places. The inter-connection diagram shows the standard un-modified arrangements rather than my changes. My modifications don’t change the way the two boards interconnect.
A big thank you goes to Leonard, KC0WOX, for his informative manuals on his website.