I too am starting on this project, and am also waiting on the cross-over pipe.  I want to have all the parts ready and on hand before I drop the tank.
One thing I can't seem to find are the rubber buffers on the two supports that go under the tank.  ETKA did not seem to show these as separate parts from the support brakets.  My supports are pretty rough so I want to powdercoat them and will need to replace these two buffers.  Does anyone know if these are available independent of the brackets?  I guess you could always glue on any piece of rubber, but would prefer the original that attaches through the bracket.
Thanks,
Mike