Yes sir, there are more than several similarities between the two. Although, I don’t have anything near as cool as your breadbox cubbies in the forward edge of your boxes. I never try to claim something as an original idea but I’ve never been shy about “reverse engineering” something either.Hah, I see several familiar design elements! Looks good and also looks like it would work as a sideways seat / bench with a seat cushion, a la a Land Cruiser. Maybe a double top plate with a piano hinge and stadium seat cushions placed with velcro, two of them on top, or unfold the top into a backrest and have velcro there so one cushion becomes a back rest. You could carry a third person on a trail run, maybe.
I may have to go with the baseplate idea as well. My drawers are not anchored well enough and after enough braking and washboard roads they shift around a bit and wind up a bit cockeyed. I have to periodically loosen things a bit and hook a tie down strap to the front bread-bin lip and do a Strong Man tug of war impression to move things back where I want them. A baseplate would make for better attachment options and solve the clearance issues I am having trying to use the bottom of my drawer boxes as a mounting base too. And make the mounting much stronger overall.
I'm going to be re-working my 'power module' portion a bit in the coming months as I finally get down to my rooftop / folding solar panel kit integration. That will be a good occasion to dismount everything and work in a baseplate design
The suspended cargo basket looks like a great idea, great place to plop bulky bags / packs, hang a lot from it too.
I think you’ll be glad you went with the base board. I tried to eliminate it from my system. In the end it was way easier to include it and take advantage of the flexibility and ease of making changes that it provided. All totaled, with the spacers on the bottom and the tie down tracks, my base board weighs just under 23lbs. The advantages outweigh the weight penalty IMO.
The cargo rack works well, as you said, for bulky items. Also, being able to quickly grab a chair for a lunch stop is nice.
Here’s a pic of the rack in use during one of the first camping trips I took with the Jeep.