Thank you for your kind words of encouragement and enthusiasm at this key moment when I've obviously gone past the edge of sanity
To be fair, I do think it's touch and go but after today I'm seeing potential and a bit more positive that it won't end up in at the tip. Looking at this https://www.sheldonbrown.com/velos.html though it could be relegated to wall art.
Short update; the "lovely crank" DS arm (inc. 48T chain ring) is bent.
However the good news is it's off the bike, so I'm still within a chance to use the other less
pretty crank set (46T) from Lot #1......just got to take off a NDS bent pedal axle though :facepalm: