Hi,
For vacation time...you get a bigger tub so it lasts, and you put it on the same floor so I won't need to climb stairs. If a big tub has to be set right in the living room next to the tank...it won't matter if it looks ugly for a few weeks, you and your wife will be gone anyway... I can do more then feed your critters, I can top off, and if you do a water change before you go, it won't be necessary for me to do a water change. I can do a water change if something goes wrong...it may take me longer then normal, and I can't claim it wouldn't be difficult... but in an emergency I could do it.
Actualy (and I've been thinking a lot about this) I've got a 40g sump sitting in the shed that I'm not using. I'll leak test it and if it holds, I'll just set it next the stand. The ATO line should be long enough to reach it. And I'll still leave a 5g bucket inside the stand and a couple more outside next to the sump. That should make it easy for ya. I should know by then if I'll even need the buckets. SOLD!!! Thanks!