Hi will10025g,
Congratulations on your new mattresses 
You certainly found a good outlet to buy from IMO.
This thread should provide you with some good resources for mattress foundations and bedframes. One of the places mentioned for bedframes is in NYC and is only available there and has some good value.
Post #10 here has some good information about the many choices and tradeoffs involved in mattress protectors, pads, and toppers and post #15 here outlines some good options for protectors for those who are looking just for protection instead of “fine tuning” their mattress.
A thin and stretchy wool protector like the Dormier can be a great choice if you are looking more for protection and want the breathability and temperature control of wool. They will generally make the latex feel a little firmer although the Dormier is thinner and stretchier than most wool protectors and will do this less than most wool protectors.
Thicker wool mattress pads or toppers will reduce the compression of the latex a little more but they will also add some localized softness and pressure relief so they can have the effect of either “firming up” a softer latex or providing some localized softness for a mattress that is a little too firm without compromising support as much as a thicker foam topper.
Phoenix