Yes You can buy weight plates as well as bars and collars.
No, you have to buy it separately.
As long as you use a seven foot bar you should be fine.
No you need to separately buy Wii fit. Although the Wii comes with Wii Sports.
The bench seat is the second row!!
It should fit as there the same body .
Yes
if you wanna get strong you should lift heavy weights, heavy weights gives strength and big muscle's, low weights gives fit/slim body
Jogging, weights, and daily walks.
There are several versions of fit bikes, and they all have different weights.
Yes
The best place to look is your local hardware store or furniture shop. If you have a curved patio, be sure to take measurements so you can buy a bench that will fit the patio that you have.
No.