Yesterday, after closely reading OP62-20 I found that the part numbers for the heat muff end caps did not match the rev 1 drawing so I called Vans tech support to check it out. They said it was best not use the the ones I had and to use the new ones. They are sending those to me so all that work yesterday was just good practice. However, today I decided on the location for the heat Tee. It's not per the drawing but, so be it. I loosely tested the hoses and they seemed to fit, so hopefully no issues there, but getting those Adel clamps in place requires a lot of well placed safety wire and patience. One is done, one to go.