The extra security from the Tech's reinforced sidewalls should be great for your commuting and audaxing. They'll only very slightly add something to the rolling resistance and weight.
Good luck with the build. I'll never forget the first ride on my Tifosi CK7. I deliberately didn't go for a test ride at all before it was absolutely finished*, complete with accessories. Its a nice feeling indeed to ride something that immediately feels almost perfect, that you've put together yourself.
* "Finished" for me doesn't mean leaving no excess fork steerer tube above the stem. You might want to raise the bars a bit one day.