I've been looking at the built-in Firemagic and Lynx grills and while I like a lot the Firemagic from a technical point of view, I can't get over the 2" wide stainless steel band around the edge to support the grill on the counter top. It seems this should be hidden under the counter top (granite, tile, etc) but all the pictures and displays I've seen show it sitting on top. What were they thinking? Why would anyone want that 2" band around the grill? It would look horrible sitting on a nice counter top. The Lynx and others have a much nicer way to seat the grill on a built in base. Am I being too picky?

I have a gas module and an induction module. Several of us here do. You do need a few inches between the two, but since you were talking big hood, it should be fine. The trick to looks is symmetry. My induction has a stainless bevel frame which matches the bevelled edge of the stainless gas module, and the black grate matches the black induction. With the Wolf and BS 24" you have size and black in common. You can have a range top shaped frame made for the induction, or you can just do a contrast drawer/apron front to mimic the front of the rangetop. The simplest way would be to do the countertop in stainless (sheet or tile) all around both cooktops, and also clad the drawer/apron with it. That makes them visually one unit with some balance. Wrapping a drawer/cabinet front with sheet stainless isn't a big deal. Or you could just say function is function and let them dance. :) It sounds like it's the solution you were looking for.

In my area of FL we were required to have one by code and it was $800 extra for that part! Check the code requirements in your specific area.

I need a bit more info and some drawings that show exactly what you are talking about . I think you want to hide the back of the grill is that right ? I would suggest you plan on a builtin grill not free standing then the back can be hidden but I need to see the grill for sure