Thanks Mike.
Today the crane came out for a trip round the RR and I watched it very closely through the tunnel portals and other tight spots. The boom is long so it swings out on tight curves which I have some. I found a spot near a fence that the boom rubs on and I had to raise a couple of portals but the worse part is the crane does not fit through “pinch point” tunnel. This is a horseshoe curve tunnel built a round 5’ diameter curves so it is tight in there.
A smaller issue was solved the other day when I had a concern that the heavy cable reels were not staying level when the boom was raised so I took a very stiff wire which is normally used to hold up insulation, painted it black, secured it to the top of the boom and threaded it through 2 eyelets back in to the cab. It now raises nice and level and is barely noticeable.
All this custom stuff and problem solving is actually fun.