Refitting this motor with the correct jugs is easy. To put the pan jugs on, a head bolt hole was moved. Plug up this new whole and reopen the old plugged hole and you are good to go. I used to do it with a head bolt screwed into hole, cut off with a hacksaw and milled flush. Pan jugs jump out to anyone who knows these motors. Totally different look.
I do most of my own simple case repair with TIG, but I send my complex stuff to Creekside Welding with excellent results.http://www.creeksidemc.com/
Check out the before and after pics for yourself.
Any knuckle is worth having. I've had my 42 FL for near 40 years, along with a 42 UL hack. I've let lots of other HDs go but these will stay with me till the end and get passed to my kids.