If the line is too small it could basically shut down every other gas fixture in the house when it kicks in, and may starve the generator for fuel at the same time.

A major add on to your gas line needs someone to measure your total run lengths and total btu's all into account before you even start.

I am a plumber that's very familiar with gas, but for insurance and liability purposes I would hire a licensed and insured company to do the work instead of doing it myself.

That way if something goes wrong you have some way to be made whole without coming out of pocket or being unable financially to repair the house when your insurance declines because you DIY'd it

Yes. I've tried it a few times - though you should know that somebody at Ace told me that it may be a problem later as far as flaking off when the poly gets older but I don't know.

I haven't had any trouble with it -- but I do more wall hanging stuff as opposed to furniture that gets wear. Something to watch -- and learn

The only times I've ended up with the crinkles is if I added a coat more than 2 hours after first coat. This happened because first coats were skinned over but wet under.

That may or may not be your problem, but you might try sanding it back down -- and seal it with poly first -- let dry for 2 days -- then paint lightly as if you're painting sheet metal. This needs much less paint than going straight to wood. This has worked nicely for me lately

It could be done and I kinda have a picture in my head of how, just not the right terms

It would have to be the same type of fittings as a ski-lift chair would use, since they successfully jump(?) across the supports for the cable, perhaps adapted from zip line fittings?

ETA: Or something along the line of how roller coaster cars are attached to the pipes they run on.

Probably not a cheap set up

Also I was thinking about the time dilation portion. My thinking is that the closer the probe gets to the horizon, the longer (from our frame of reference) it takes to move closer, like the last few million miles would take several of our lifetimes to cross before it even reaches the horizon.

And once you've "floated" across that horizon, There is no return, (except maybe as a part of the plasma "jets" they emit). I don't think OP is catching the one way only part of this.

This article covers a bunch of stuff you'll need to know and calculate for this. I think your 4 6x6 idea may fit with this

https://www.ziplinegear.com/pages/how-to-build-a-zip-line-section-one-concepts

I believe you'll need to figure in a lot more wood than you may be thinking. It will probably need a platform at one or both ends, and guy anchor posts at each end.

The water comes up the center of the grey tube and then allows water into the tank through the outer portion of the grey tube -- you need to replace the fill valve completely or replace just the top portion to stop it from filling higher.

https://www.youtube.com/watch?v=twynH8xVdy8

If you remove that white threaded rod - you should be able to remove the valve stem from there. Then you can take that valve stem to a plumbing supply and replace it. You shouldn't have to replace the whole valve, just the one stem