Before you go crazy pulling out the tub, do yourself a HUGE favor and first do the "shower curtain mod" referenced many times on the site. Basically, get a vinyl shower curtain designed for home use, stick (with tape, velcro, etc.) to the 2 folding shower walls, and trim the excess at the bottom to conform to the shape of the tub, but making sure to leave enough for the curtain to extend into the tub.
I seem to recall there are 2, or at least 1 large, polyester shower curtains that come with the TM. But now that you are covering half the shower, you don't need all that curtain. So either remove one (of there are 2) or get a smaller one (if there is only 1), so that you have enough curtain to simply cover the shell wall and the space opening to the bathroom. Put a small piece of velcro on the TP holder, and a matching piece on the polyester shower curtain, to keep the curtain closed.
Just about doubles the shower space. I am 6'3", and it is a FAR more pleasing experience.
Like this:
https://www.trailmanorowners.com/for...9&postcount=14
Dave