Rttoys
Goblin Guru
I used screws to secure my tunnel cap. I wanted to be able to take mine back off if need be.Watching with interest, as I am probably going to assemble that stuff this weekend, assuming I get my hardware baggie today/tomorrow.
Are you planning to cut your tunnel into separate pieces? I think I'm going to drill two new rivet holes in the tunnel right behind the shifter, and cut it between the holes.
Oh and I ran fish string through the tunnel and taped it off on each end, just in case I needed to pull wires through later.