Ah... so you needed spacers too! I don't know how Gary got away without them. I have spacers now, but have yet to put them on. What I did at that moment (when I assembled all this summer before last) was to measure the thickness of a lot of washers to make stacks of three per stud to give me the clearance. Cheap, but it worked. So I'll be putting on my real spacers when it warms up out there in my garage....

Let us know how it goes (or doesn't depending on how you look at it)... and did you install a PP valve or no?