Hi Illumin8,
Both of these are great choices and both of them will give you good guidance as well in terms of any choices you have. They are well worth taking to on the phone. If you have done any local testing on mattresses that indicates any preferences as well then that can also help them help you better but they’re both very good at what they do.
I wrote a “foundation” post today here that amalgamated most of the foundation posts in the forum and there are lots of links and choices that will give you a good sense of the different types and prices from very low cost (a little over a hundred dollars) to much more for some of the more specialized ones.
I hope you let us know what you end up with 
Phoenix