I figured I would offer this up on here. Main post is over on Expedition Portal.
http://www.expeditionportal.co…-Lid-for-CDN-M101-or-M416
Having bought a new trailer tent setup last fall, I no longer need my RTT/Lid for my CDN M101. Details as follows:
RTT - Camping Lab
Size: 72" x 96"
Weight: ~100 lbs.
3" Foam Mattress
This is the "last" version that was manufactured and has the heavy duty cover. It is approximately 4 years old has been used, but also taken care of VERY well with zero damage or issues. The tent, rain fly, and cover materials are all in perfect shape with no age or sun related damage. Additionally I have used some very good seam sealer to treat all the seams as a preventative measure, although I have never had any leaking issues. I also have installed 3 LED light strips on the roof supports. Typically, I would simply plug them in to a dimmer switch which in turn connected to a small 12v battery. As far as sleeping comfort goes, I think the mattress in this tent is the best one I have ever slept on, bar none. This tent easily fits 2 adults with gear with room for a kid and dog if you want cozy. 
I had it mounted on my trailer, where it fit perfectly, but it is also simple to mount as a RTT on top of a rack or load bar system.
Regarding Camping Lab going Out of Business, no worries, the tent is identical to the Mombasa RTT ADVENTURE II (3 MAN) (RTT9010) so parts/accessories can still easily be gotten.
For Reference - http://www.expeditionportal.co…-Lab-Roof-Top-Tent-Review
CDN M10 / M416 Aluminum Lid
I hate to get rid of this as my buddy built it for me, but I just don't have a need for it anymore. The lid is a single sheet of 3/8" aluminum (I forget the alloy but it worked perfectly) and has been braced such that there is zero flex. The welding is immaculate. It has been powder coated black and was attached to the trailer with barrel hinges. The companion halves (3) simply need to be welded on to the trailer and the lid slides right on. This style hinge allows for quick removal of the lid. Alternate hinges could easily be used. The lid is locked in place by 2 lockable latches that just bolt to the trailer. It is currently drilled to allow direct attachment of the RTT mounting rails but it would be easy to block the holes and use an alternate system like a Thule or Yakima.
So, the costs...
I would like to get $600 for the tent, $500 for the lid, or $1000 for both. I would definitely prefer selling this as a package and I will entertain offers. Barring any legitimate offers, I will just hold on to it. The tent and lid are located near Annapolis, MD and would be willing to work with a serious buyer for something other than a local pickup. I will monitor this thread for questions and send any interested parties my contact info if requested.
TIA!