Kframe, engine bay, front suspension questions

Wasnt sure which sub forum to post in, as everything I do seems to "domino".
I have "roller" front suspension removed from our 69. I removed rust and primed/painted and bedliner the pass side inner fender(outboard side). Drivers side is stripped and getting prepped.
I would like to paint engine bay once I clear out the rest of engine bay. It's been seam sealed and about 95% "ready" for paint.
Once bay has been painted i would like to install restored kframe and suspension.
So, painting engine bay....I can get an exact match in aerosol from Dupont for $42/can, 69 F8 Green. Not sure how many cans to do the bay and both outboard sides of inner fenders? OR do I paint gun it? We have neighbors directly on either side of us, so overspray and fumes may/probably will be an issue if I "gun" it.
So spray or gun?
Keep in mind I am trying to simply assemble and make progress while putting refurb parts on car(free up space). All while trying to make it more presentable for sale.
I would like it to look respectable tho.
Next the suspension.....is there an order of install for torsion bars forward? It's on axle stands now with most of the front suspension off.
I guess to sum up, should I rattle can or spray the bay? Keep in mind neighbours and a virgin sprayer lol.
Also order of assembly for refurb kframe and front suspension?
Pics as it is now.
Lol grandson Knox giving me a hand, can see him wondering wth have you done Papa!! Lol
Thanks
Steve

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