I have done a little more research this morning and the largest tank I can get for inside my house is the Norwesco 500 gallon tank which is 31"W x 70"H x 71"L.
http://www.norwesco.com/page.cfm?menu=18There is another one which is a flexible tank that can fit easily in the door and hold up to 950 gallons, but it's expanded size makes it a bit too large.
http://www.hydroflexsystems.com/index.php?page=Potable-Water-TanksWhat I really wanted was a 1000 gallon tank that is 64" diameter by 80" tall which would be perfect, BUT... I would have to take the doorway out along with part of the wall to get it in. I could get it in the house through the large sliding glass doors... just not into the water closet without removing part of the wall.
The 500 gallon tank would still be sufficient I believe. I wonder if you can connect 2 of these tanks in tandem to get 1000 gallons??? These tanks have a 16" fill opening at top and then the 1 1/4" Outlet at bottom.
But the problem now is all of this workable along with the CSV. Is what I describe in original post the cleanest way of doing this?
I have found a local supplier for the tanks, cycle stop valve, pumps and so forth... now determining exactly what I need.
Since I am looking at two pumps (well pump / inside tank pump) along with making sure I have proper safety shutoffs for the various conditions I am not sure if this is going to be overly complicated. I hope not, but definitely need a bit of guidance so am educated as best I can before I start trying to find a local well / pump / plumbing company.
Thanks,
Greg