Weight Balance Drivers to Passengers Side: Advice

Hi All,
I am getting my CT on Saturday hopefully. Very excited. One of the constant back and forths in my mind is whether to put the fresh water tank inside or not. Inside means potentially easier to use in colder weather. The trouble with inside is, the best place for me to put it is on the driver's side over the rear tandem axle, but that side already is somewhat heavier as it has the bathroom (toilet, sink) on it, some drawers for clothes storage and a bunk bed and the other side doesn't really have anything equivalent. I expect that the bathroom with framing only weighs 100-150 lbs. And the bunk maybe 80-100 lbs without anyone in it. So we are currently looking at an imbalance left to right somewhere in the 250 lbs, with the chance that some things elsewhere will slightly balance that out.
However, I hope to add a 40 gallon water tank (or maybe even 50) so we are talking about an additional 350-450 lbs on the driver's side.
How much does this matter? The other solution would be to put it under the floor outside the trailer, but I'm at least somewhat tempted by the idea that I could use the trailer more towards freezing levels. I know I could insulate it outside, but it will also then maybe need to be heated.
Thanks everyone!
I am getting my CT on Saturday hopefully. Very excited. One of the constant back and forths in my mind is whether to put the fresh water tank inside or not. Inside means potentially easier to use in colder weather. The trouble with inside is, the best place for me to put it is on the driver's side over the rear tandem axle, but that side already is somewhat heavier as it has the bathroom (toilet, sink) on it, some drawers for clothes storage and a bunk bed and the other side doesn't really have anything equivalent. I expect that the bathroom with framing only weighs 100-150 lbs. And the bunk maybe 80-100 lbs without anyone in it. So we are currently looking at an imbalance left to right somewhere in the 250 lbs, with the chance that some things elsewhere will slightly balance that out.
However, I hope to add a 40 gallon water tank (or maybe even 50) so we are talking about an additional 350-450 lbs on the driver's side.
How much does this matter? The other solution would be to put it under the floor outside the trailer, but I'm at least somewhat tempted by the idea that I could use the trailer more towards freezing levels. I know I could insulate it outside, but it will also then maybe need to be heated.
Thanks everyone!