the 45l is a little too small, the 110 is appropriate for dwarves and Syrians (though it is on the cusp of okay for a Syrian).
most wheels I can think of come with a stand, and you just stick them in and it's fine. best not to tape it down though because it can make it rattle or something like that, I think people have found.
for the water bottle, I have bought the cheapest bird feeder and snipped an opening midway down, put stones in the bottom to weigh it down, and then slotted the bottle in to make it free-standing. you can also get a bottle hanger like this:
Water Bottle Holder for glass tanks | eBay
I have one of these and it's been great for the open top fish tank Hamburglar is in.
you could technically leave the lid off if you don't put anything climbable in there (which is why Burglar's tank is open top), but if you're worried you can always just put mesh over the top and fold the edges down.