so it seems I was being a extra cautious.. I took it to the shop (to use the truing stand) and, slowly but surely, brought the wheel into true and tensioned it. There are still some spokes not fully threaded (one or two threads left), and there are some discrepancies in tone. The guy in the shop said (he just touched a few spokes) the tension was ok, but I'm not happy.. everything should have the same (or closely) tension, right (front wheel)?
The rear wheel has the axle inverted... the guy was probably using the right side of the axle as a spacer for a single/fixie... so I need to fix that first.
Thanks for all the replies
these are my first wheels, it's always nice to hear some ideas, as to build a troubleshooting database