OG I got enough bent, broken, worn and rebuilt parts to match you, possibly even surpass you.
Seems like I got a book full of guys who owe me one too, half of em went and died still oweing.
I spent 30 years of my life on the road, last 15 for one company living & working out of the motorcoach and later custom built motorhome, generally under man power or with local man power that didn't want to learn. I got a head full of ways to do 3 man jobs by myself.
Rule #1, Phil neither lifts or carrys anything over 10 pounds. My Chiropractor makes less money and I saw ouch much less. Its been many years since I felt I needed to prove anything enough to say ouch to do so.
Far as melting iron goes, I know a couple people who still do that in the city, and I am completely willing to let them do so. The ones still in business owe me favors.
When it comes to attitude, I don't have any attitude problem. Phil has an attitude, and it isn't a problem for Phil. Most people don't want to make my attitude their problem either.
Since you have a furnace, you may apply to the appropriate government agent for permission to retain a small percentage of your floor for flux. Good luck finding the correct agency.