Holy CRAP! This thing is gonna be huge...

You should check out the team toilet truck on YouTube, it's from
around my area. The dude that owns it needs to climb up the tire to open the door, climb back down then pull himself up by the bottom of the door and the rocker. It's on tractor tires taller than me and 5 ton rockwells
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The NDT's don't actually look bad on there.
If you had some of those Euro NDT's with all the siping I'd almost say run those.