The set of disc's is a 10A. A cub will pull it fine. It is in great shape from the looks. It should sell for at least $300-400.
The 22 sickle mower looks to be all there. If the 4" pulley is there(probably still on the tractor) as nice as it looks, with the belt guard, it should sell for at least $250-350 or more.
The 54 grader blade also looks real good. It is set up on front, but can be mid mounted for grading. A minimum of $250 for that, up to $350 in that condition.
Your cub also has front and rear wheel weights. The front weights alone are selling for $100-$125 for the pair, and the rears for about $100. But they should stay with the tractor. They just increase the Cub's value.
It has sat long enough, we can't tell if the tires are holding air. The fronts look good, and fairly new. The right rear, and probably both will need replaced. Good used tires are plentifull and not real expensive.
The seat still has the silver canvas, a plus. The tin looks realy straight as does the grille(really nice). Also the tie rods are extended and perfectly straight.
This is a nice cub. If it starts and runs good, it should sell by itself for about $1500. If the motor is stuck, about $1000.
If you sell it as a package, it looks like this
$1000-$1500 for the tractor
$300 for the mower
$350-$400 for the disc
$300 for the plow
Not running = $2000 for the package
Running = $2500 for the packagehttp://www.farmallcub.info/galleries/ci ... Harrow.asp
I think the prices are fair and in line, but are subject to regional and economic conditions.
You should post it for sale in our For sale forum. As the owner/representative, and a member of this site, that would be the appropriate place to put it.