Mark,

As you probably know, the creation of wine is not a precisely timed
phenomenon. The kit directions are a guideline, not a schedule. The
important question: Is your wine topped up in secondary? If so, just
leave it alone (70F is more than warm enough) and wait until it is
still.

If, however, there is headspace in your secondary, your wine may be at
risk of oxidation if it is left for too long at that low gravity. In
that case, I would proceed with the instructions in the kit.

I have never made wine from a kit, so I won't comment on adding
sorbate to a dry wine, or on adding clearing agents before letting the
wine clear naturally (both are things I would not do).

Roger
Quinta do Placer