According to dpb :

I'm in agreement w/ the others who suggest either renting the Hilti or
buying a cheap Remington powder-actuated gun, so nothing new there.

You don't need a hilti to drive tapcons.

I'd suggest the simplest way assuming there's clearance is to frame
the wall section on the floor and then stand the sections in place and
then fasten the top and bottom sill plates to the floor and ceiling
and done...much simpler process than putting down sill plate and a top
plate in place and toenailing studs in.

Absolutely.

As someone else also noted, remember to use treated for the sill plate
if in contact w/ the floor slab and the idea of a membrane between is
excellent if it's a below-grade slab particularly.

The membrane and or a piece of vapor barrier plastic (staple edges
to side or top of sill) substitutes for treated lumber.
--
Chris Lewis,

Age and Treachery will Triumph over Youth and Skill
It's not just anyone who gets a Starship Cruiser class named after them.