Installing my 273

Definately do the brake lines first. That way, you can get in the engine bay and sit on the k member, and have room to work. You might wait on the harness if it all plugs in. Early A engine bays are tight, so you don't want to take a chance on smishing any of the wiring. Glad it's coming together....did you get the paint done?
Not yet. Just about finished stripping the paint.
Too humid to paint the last few days.
I work Monday thru Wednesday next week.
Hope Thursday is good. That's my plan.