Where I live, we're going to have some white stuff falling out of the sky in a few weeks.
Where you SoCal and high desert folks live, this might be useful:
http://cgi.ebay.com/ebaymotors/Porsche-Early-911-65-68-Original-A-C-Compressor-356C-SC_W0QQcmdZViewItemQQcategoryZ33543QQihZ011QQitemZ320046235937QQrdZ1
And I don't know who's in the market for one of these mirrors -- but it ain't me:
http://cgi.ebay.com/ebaymotors/Porsche-356-B-Original-Ponto-Stabil-Exterior-Mirror_W0QQcmdZViewItemQQcategoryZ10076QQihZ001QQitemZ110052684984QQrdZ1
Anybody need a hardtop? Again, not me! But this guy's about half what'cha would expect to pay. With the savings, you could modify the fiberglass to make it work!
http://cgi.ebay.com/ebaymotors/Porsche-356-Cabriolet-Factory-Hardtop-A-B-C-Super-90_W0QQcmdZViewItemQQcategoryZ10076QQihZ001QQitemZ110052584452QQrdZ1
TC, here are some door parts with 'roadster?' as the caveat.
http://cgi.ebay.com/ebaymotors/Porsche-356-door-tops-chrome-cab-roadster-speedster_W0QQcmdZViewItemQQcategoryZ140732QQihZ019QQitemZ290048055268QQrdZ1
Put down the orange juice can and stethescope! Use one of THESE!
http://cgi.ebay.com/ebaymotors/PORSCHE-356-912-911-WEBER-CARB-UNI-SYN-BALANCER_W0QQcmdZViewItemQQcategoryZ6763QQihZ006QQitemZ160049242243QQrdZ1
Finally (for now), an alleged 914 Type IV case with some 96s sticking out of it. No heads, but it's advertised to be a 1.8 for not a lot of money. Looks to me like a wire wheel candidate and maybe some elbow grease, Brak-Kleen and some ScotchBrite will do it up okay:
http://cgi.ebay.com/ebaymotors/Porsche-914-Big-Bore-Engine-96mm-Case-Pistons-Cylinders_W0QQcmdZViewItemQQcategoryZ33615QQihZ005QQitemZ150056220875QQrdZ1
And, natch'rally, the standard disclaimer -- I don't know these cats. Cutty say he can't hang, say 7-up. Hang loose, Blood. AC gonna catch you up on the rebound outta medi-sai.
(Thought I'd change the disclaimer up a bit.)