We are trying to choose a free standing cast iron bathtub for a master bathroom. Have been looking at a Kohler, but by the time we purchase the tub, add the extras (free standing faucet, skirt, drain etc.), the price is more than $7,000. I see there are less expensive cast iron tubs in very similar styles offerered online at 1/3 to 1/2 the price. My question is whether the porcelain will hold up as well as the more expensive tub??? Does anyone have any experience with any of the following brands: Cheviot, Randolph MOrris, or other? I would appreciate any help you can provide.