Thunder Blade sit down disassembly

Hi, im about to buy a Thunder Blade sit down, i have not seen it live
yet, but from what i have read the game is 90 cm wide and my door is
80 cm wide, so: Is it hard to disassemble the game so i can get it
through the door ?

I now that the monitor can be disconnected from the base, but can i
remove the seat and is that enough to get it through the door?

Maybe someone has one and can help me, and before someone say it, i
can not do a bigger doorway

Thanks/
Hans