Hi Kovacs,
Just for reference … the list of better possibilities in and around Indianapolis are in post #2 here. While most of them offer latex mattresses… they may not fit the criteria you are looking for but a few calls will find out for certain.
There is a list of online manufacturers in post #21 here who offer a wide range of Talalay and Dunlop latex mattresses and may have better “value” based on various criteria (including yours) than the outlets you have looked at (and of course your post here also qualifies you for an additional 5% discount or bonus from them as well).
A search on Flobeds and on Astra (you can just click on both of these) will bring up lots more information about both of them and some comparisons with other options as well.
This should give you a few more options (and I believe better ones). I’m not sure what you mean by “discounting” the Talalay over Dunlop arrangement because the 'adjustability" of both types would depend more on the number and thickness of the layers than on the type of latex. If you mean having a 6" layer of Dunlop (or Talalay) with a Talalay layer over it … then a 6" support layer would have fewer options for re-arranging or exchanging the layers yes. A 6" core is also more difficult to pack up and ship if you need to. For most people this wouldn’t be a major issue if they chose the layers well and having less layers may lead to a lower cost in some cases but for an online purchase or for someone that has a narrower “range” that will meet their pressure relief and alignment needs … then this may be more important.
I like your spreadsheet 
The only thing that is “missing” is the knowledge and service and the “approach” of the people on the phone that you talk with at each outlet and their ability to educate you and help you make your best choices. For me this would be a big part of my “value equation”. Out of the two you mentioned … Flobeds is very good here and Astrabeds not so much.
Phoenix