The last two weekends I put together a Berkshire Valley Models water tank kit.
https://berkshirevalleymodels.com/I've been working over the last six months to improve and update Deer Creek on my layout. I've rebuilt the area so many times over the last decade that I have lost count. I'll update those efforts in the future.
The kit came together rapidly and easily. I did have to review the instructions a few times to make sure I was using the right part at the time. Biggest issue was warping of the columns on the tank when I applied stain. The columns have end grain up their length and warped severely. I used low viscosity CA glue on the end grain while holding it up against a steel ruler to get them straight again. Kind of a pain, would not be a problem if you painted the tank. Here's the results.