I had a Toolex 8"er and it earned it's keep and then some. A Pal of mine has the machine that you're looking at and it's definitely a good value if not a great jointer at $200. It's light weight and a bit flimsy but if you set it up right and it's for home use it'll earn it's keep and your respect.
Those ain't extensions! Take the jointer off the base but leave the jointer proper assembled. It's not impossible to do what you suggest but it is too much work and you may or may not put it back together easily and properly. If you must disassemble just pull the outfeed table.
I agree with Chris totally. If You have to disassemble it you are going to be one sorry dude unless you are great at dealing with realignments of thousands of an inch. I'd rent a U Haul before I took it apart.