Is the plumbing going into your house pvc?
If it is and you can glue pipe it is something anyone can do in an hr or two
The automatic carbon Filter that size (best round guess at my whole sale price) $500 ish for a really nice one (clack ws1 10 x 54)
A little more for the softener Maybe $700 ish with all the good stuff in it.
(clack ws1 10 x 54)
A $1000 each and up is normal for an install price (i would do it myself or at least order what i want and then hire someone who knows what they are doing to put it in for a few hundred bucks (we make most of our money selling you the filter not installing or repairing it))
Clack is the best valve (controller) around (you can put just about any valve on just about any tank)
5yr manufacturer warranty BTW (and they honor it)