Yes you are at the hardest part of any project and man,I can relate to your problem. The thing is we could all give you ideas but at the end of the day,it is your rod and you have to live with it so really what I may think is a excellent colour for your truck,you or somebody else would say no way. We do have a very nice pickup like yours down here that is painted bright orange and that stands out amongst the crowd.
I personally have changed my mind on the final colour of my bucket so many times now that I have lost count. My chassis is finished in a hard 2 pack shiny black and for the knock around testing 6 months the body was satin black which looked cool also but I am lending towards a bright colour. Oh another thing to think about is what colour interior do you wish to have.