Greetings:
First time on the site. Like what I see so far.
Here is the scenario, I am installing a bathroom in a basement with 7' ceilings. I'm NOT having any problem with the toilet installation because I am using a macerator toilet. The problem is installing the three piece show unit. The unit is 84 inches (overall height) and I am 76 inches tall, so I've very little room to spare. Specifically the base of the shower unit will cover an old metal floor drain with a built in P trap. I envision, I'll need to chop out the concrete, remove the old floor drain, rubber boot the old drain line and bring black PVC (including a P trap) back up to where the drain opening of the new show base will be located.
I am wide open to suggestions that will make this task easier, anyone?
Thank you.:)

You can do what we did in our old place up North. My dad used the floor drain itself as a shower base and drain. Installed a mixing valve and shower raiser on the wall and a circular shower curtain and the job was done in a afternoon. You could mount a shower base over the floor drai, leave the shower drain open and use it as a indirect waste. Good luck, Tom