After everyone's great help on the old Enfield wood, I researched more and decided to go the oven cleaner route. After generally making a mess out of the kitchen sink an old friend tonight brought the "Duh, facepalm moment". She simply suggested I use the guest bathroom tub for this.
Uh, yeah. That works much better! To add insult to injury on my increasingly failing mental facilities she commented on the Magnum 500 wheels I got out of a junk yard oh, 25+ years ago and said I used the ONLY bathtub then for those.
And then proceeded to mask them out and spray bomb the flat black. In the kitchen.
I will let you know how this comes out!