Welcome Michael
Sorry to hear about your issues but didn't you inspect the trailer before you bought it? Kind of late now about the shower but I would contact Forest River about the draw space and see what they can do.
Wouldn't surprise me a bit if they just didn't put in the correct draws.
Yes., everyone seems to find issues in their new rigs but you will soon hear that these are put together in respect to time and equipment they have and not the actual consumer in mind.
Take a deep breath and enjoy what you have.