I am making a couple solar collectors and no way am I paying that extortionist price for reducing T's for the header at the top. I have lots of experience with the torch and sweating ect. I want to drill and solder connect the 1/2" along the top to a 1" for the header. Can this be done using silver solder for the joint and a nice tight fit or am I farting into the wind here? I suppose regular 50/50 is out of the question for an application like this. What say ye, better than I plumber fabricators?