Doc,
whirl pool tubs are fun. Heavy, but fun. Installing one always leads to more work. Generally you gotta tear up a good piece of wall to get the old tub out. Then re-do the wall when you get the new tub in. Then a new line for the eletric. Like I said--FUN
I just checked your profile but you haven't listed your town. So I imagine that since I haven't seen you at the local circles it would be quite a commute.
Put me up for a week or two, feed me and take me flying everyday and you got a darn deal.