George,
I don't seem to be able to figure out the PM inner workings on this forum. You may get my responses and you may not.
I haven't heard any more from TMac but his metal work has to be aluminum. Steel would have to be too heavy. It's obvious that TMac is very talented and knows a lot more about metal work than me. Maybe he will jump back in when he has time.
BTW the proctor hyper link is now a NY building contractor.
John S