Upholstery
Clean up the frames with a angle grinder wire wheel as best as possible and paint.
Install the covers with each side folded up in the FINAL position before hog ringing the listing wires.
Do you have/need the horizontal listing wires for the backs?
Are you installing headrests?
Legendary interiors has great videos, check them out and view multiple
I have lots of photos if you get stuck.
Is this a bench to bucket conversion?
times.