I have some good and bad new from what I see for you on this.
If you do their sleeper package, that's fine and the front looks to mount more solid than the rear surprisingly. This would give you a solid flat floor you can use and pull each or both front plates like the seat delete. Looks like a bit more to it though. This would also give you a solid start on a bench/ cabinet type setup if that's what your after. If you know what your looking for their pictures give more info than you think but they do suck. They are all the same view.
Green- M12 mounts
purple-M6 mounts
White-tie plates
You don't get all the other bolts shown or need them until mounting accessories or tie downs. They are 1/4-20 and cheap to come by.
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Now the bad news, The front sleeping package doesn't work with the seat delete. ( I would call) and maybe they will modify it for you but I doubt it. They have their hands full with Broncos and Gladiators. It would actually be better to have this base under the seat delete fronts to mount things to but would drive up the cost even more...
First problem, IF you could get it to work, the platform would cut right into the side hatch door.
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The delete system also sits to the rear more and would run right through the plate door system
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Kind of one of those things you need to decide up front and go either / or. You can try to sell the fronts if/ when you convert to recoup come cost. As mentioned though, I can add more specific pictures if you need any. My main decision on this was it was the lowest system I could find and saw a few at the MW Expo last year convincing me they were worth the cost(almost) lol. They do come at a premium.