Talk to Todd of Todd's Canopies before you get so far into that project that you cannot get out.
I had an article on that subject around here, but cannot find it now. The bottom line, was, unless you want another project besides building your plane, don't even think about it. We formed, not blown, our own windshield and I would never even attempt that again. There is a time for building and a time for FLYING and the time for building has expired. See N64KR at http://KR-Builder.org - Then click on the pics Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2005 - KR Gathering