[Coco] Upgrading a CoCo 1 to 64K

[Boisy G. Pitre]

I have a nearly new in box CoCo 1 E-board that had 16K and Color Basic. 
  Using some 4164 chips, I have managed to rather easily upgrade it to 
32K by just replacing the 4116s and moving a few jumpers from the 4K or 
16K to 32K position.

Now I am wanting to make the appropriate modifications to this computer 
to bring it up to 64K.  Does anyone have detailed steps to bring a 32K 
E-board CoCo 1 up to 64K?  If so, please post to this list.

Regards,
Boisy