~Roy wrote:

1.Level off slab with sand and lay down pavers, and use mortar to
bonmd the last rows(s) in place so they do not move.
2. Level it off with pressure treated lumber 2 x 4 or 2 x 6, and
install 5/4" decking, which will raise height of slab up 4 or 6 inches
or so, which would eliminate one bottom step on the outside steps in
the back door, but create one step to get onto the deck at the
driveway, which is fine also.
3. Pour a skim coat of concrete (sand mix) to level it up and then
install carpet again......(not really keen on this concept sa carpet
gets mildewed and algae on it really quick in this region.

Any other ideas greatly appreciated.

I think you've about covered the obvious options. You could combine 2 & 3:
don't cover with carpet, cover with decking.


Choice now comes down to cost/appearance plus anticipated maintenance.