Welcome to the TT group. You'll enjoy your TriStar -- it was my first MC. I redid the carpet on mine. As has been mentioned, there are some threads here on that . . . and yes, you do need to carefully jack up the port and starboard consoles just a bit to get the walkthrough section out. I reinforced mine with some added glass cloth and resin. The sections have a plywood centre that's set in a fibreglass shell. The plywood can rot after a while.
"For every complex problem there is an answer that is clear, simple, and wrong." (Henry Louis Mencken)
2005 X2, Viper Red, MCX, Acme 1285, PPass, rear 750 sacs, KGB, IBS
(previous) 2001 X5, 1991 TriStar 190