OMG... 35 gallons? That's over 250 lbs.
Wait awhile, and discover your camping style.
Most (not all ) state parks have shower facilities. You may want to use them. A pair of shower sandals is $1 to $15. Or use your flip flops.
Using the shower is the biggest water consumer and tank filler. When we can use a community facility, we do. If you just don't like anything but your own trailer shower, look for full hookups, and use the Navy/ marine shower technique when you can't find full hookups.
Just an FYI. I hate it when people spend a lot of money on unnecessary equipment, and don't use it later.
We have a smaller tote that someone gave us. Never used.
Sherry