Back in the days when we were first married and thinking about our 'dream' house, one of the things I wanted to build was one of those BIG colonial walk-in type fireplaces that included a hand-forged, swing out fire crane and a wide hearth that would accommodate tin bake ovens, Dutch ovens, trivets for legless pans, spits for roasting large cuts of meat or turkeys, etc.
Alas, it never came to be, but Ol' P's setup comes close to what I'm talking about. I've seen those for sale and remember him showing us those pictures before. I'm thinking of doing the same thing with our permanent fire pit, too. Right now, we just use ours with Dutch ovens and occasionally with a plain non-adjustable grill for chicken, steaks, etc. I like this idea for the option of swinging the supports off the fire or moving the cooking food to warmer or cooler parts of the main fire. Endless possibilities there! 
A friend of mine's wife was a history buff and loved 18th. century antiques which she collected when possible, there also was a nationally know artist who lived in our are who dabbled in all forms of art, painting, clay, blacksmithing, and furniture.
He got the idea to build a late 18th. century colonial home using the same materials and building methods used in the period, he even forged all the nails and hardware by hand, and got rough cut lumber and beams and hued them out to size with period tools, he ended up building three of them until he was satisfied with the results.
My friend and his wife bought the third one, an exact replica of an 18th. century farm house, it had a period pantry, full kitchen/dining room with a huge working colonial fireplace complete with all the irons, and even had a brick oven and warming closet built into the side of it.
The house had seven rooms (three bedrooms) and a fireplace in each room, but that fireplace is what always made me drool, another friend of mine from CT., a fine builder of beautiful early American firearms (you can look him up on line at Blackhart Longarms), he and his wife also built a colonial style home about 15 years ago that has a full cooking fireplace.
But, if I ever get the chance to build a new kitchen in a different home I'd like to explore the type of kitchen featured in the cooking series of Jas.Townsend & Son., he has a little higher than normal counter that is topped off with fire brick, at the rear of the counter is a built in brick wood burning oven, on the side of the counter near one wall is a swing out cast iron pot holder, and there is a large "tin" chimney (hood) over the counter to vent out the smoke.
As can be seen in their videos, he builds his cook fire right up on top of the counter, he can hang a pot on the swing hook to boil water or make a stew, he draws off coals and uses a spider or trivet to cook with or uses his dutch ovens, its a great set up in that us old timers don't have to be kneeling by the fire place or stooping over to check how the grub is coming along.
