Update on construction of my floor channels.  
 Other than the little wing that caps the stub to direct air into the port. I have 2 ready to weld.
 Being Montana it has been spring like for several weeks... next few day are single digits... good thing I'm still fabricating.
 
 Once I weld up these, I need to start fabricating the door.
 With wonderful free information from Matt Walker I have great plans to build from!
 Two 5 x 4" pieces of Robax glass, some road case hinges & a butterfly latch.
 A roll of Morgan 
SuperWool  1" wide by 1/8" thick gasket material.
 Aluminum plate and some pop rivets.
 
 Getting excited about this!