I have hundreds of hours in my conversion - and I did buy some RYCA parts so I didn't have to spend hours building some of the things they had already perfected. Below is an illustration of just how long some of this stuff can take - I likely have more than 25 hours in just getting the battery box made and the fuel tank modified.
It took me about 10 hours to design, cut, build and paint this battery box.
The battery box also serves as the lower half of the rear fender. It has the battery on top, the brake light switch is mounted on the right side, the starter relay is mounted below the battery, and the igniter is located on the left side.
Getting the GT550 fuel to fit the way I wanted probably took another 12-14 hours to complete if you count the blacksmithing, relocating the petcock, making a notch for clearance at the top of the engine where the cam chain is located, and building the mounts.
But in order to get it down low enough to sit proper - I had to make more room in the tunnel under the tank, and it took about 6 hours of heating, hammering and fitting:
Then once I got the tank to sit low enough, I made the front tanks mounts:
I got the mount for the petcock relocated:
The GT550 tank has this spot where it would sit on a rubber cushion on the frame:
I made this mount and rubber block for the tank to sit on:
I then used the GT550 rubber strap and made a new piece for the strap to attach that is under the tank instead of on the back where it hit the seat: