If you're really serious, spend a few bucks and have some plans drawn up with an estimated cost so you can make an informed decision.

I imagine you'd have to move walls as well as plumbing and electrical that is going to involve hiring a structural engineer to install a beam to replace the loadbearing walls.

Once you have the plans with a hard estimate, I would seriously looking for a new house that's more to your liking as that big a remodel is going to totally disrupt your life for several months. And who knows if those changes will increase the value of your home by the amount you invest to totally revamp the layout? Unless you're in a very high end neighborhood or area, most homes have a limit on how much they're going to sell for based on the value of the surrounding homes. Don't get yourself deeply into debt for a remodel if you could sell your home, and find a nicer home all the while taking on less debt. Being house rich and cash poor gets very old very fast.

It isn't cheap, I can tell you that... because we are in the middle of doing it! You will need to move plumbing and electrical and possibly gas lines, and then get rid of the former ones. New cabinets, counters, sink and possibly appliances. I don't know what you are planning to keep, but the amount of sheer labor involved is Very expensive. But in our case I do have to say that it is going to be worth it.

Figure an additional $10000-$15000 minimum that you will not get back at resale. Also, any time you start opening up walls, you have to bring everything up to code or it won't pass inspection.

Just last summer I swapped my kitchen and 2nd bedroom/study. My costs won't mean anything to you because I'm in Mexico, but I ended up spending about $6K on a $5K budget. The work was quite extensive, involving modifying and raising a large iron casement window, knocking out part of a brick wall, adding plumbing and drainage from scratch, and extending the gas line. Most existing electrical outlets had to be raised and a few new ones added. None of this is trivial in a home with solid brick exterior and interior walls. I also had to get new cabinets, redo the tile floor in the old kitchen/new study, and of course repaint the rooms. There were unexpected expenses … for example, my water pressure and hot water systems proved inadequate to supply the new kitchen, so I needed a new pump and point-of-use water heater. Cabinets accounted for about 1/3 the cost of the project even though I kept them simple and didn't order more than I needed. I kept my appliances and sink and chose a laminate counter.

My dog and I lived in a massive construction site for months, but I'm VERY pleased that I finally did this (after years of "thinking about it"). The new kitchen layout is a joy to work in as well as having more storage and free counter surface. The new study is quieter and much more pleasant in the back of the house. Definitely worth it!

A regular kitchen remodel is usually pricey. To move the entire kitchen changes walls, plumbing, electrical, demolition of areas you're relocating the kitchen to, drywall/plaster, painting everything, finish materials, etc. There are SEVERAL elements that go into a kitchen remodel without even considering the finishes. The plumbing by itself will be a lot. Have multiple contractors give you a proposal for the cost of the work and make sure you save some money for contingency. If anything needs to be brought up to code, or fixed you want to have the money to do that as well.