So, it's done

hyea:
Most of the time was spent figuring how to lift the the front wheels about 2 inches so I coul get the jack under the suspension arm.
That's because the jack has a pad with about 3 inches of rubber.
So I had to get creative and I finally managed to place the spyder over a solid wooden door which was enough to then lift the wheels (one at a time) with the jack.
Everything else came off easily (didn't removed the callipers). Wear was pretty even on the old pads, I had about 1.5mm on the right side and a bit less than 2mm on the left.
Cleaned the whole thing, rubbed the outter side of the pads with the anti squeal stuff. Pushed the pistons with fingers and placed the new pads.
Pad pins came off very easily so 46Nm/34lbft seemed way too much for tightening.
Recommended tightening torque for lug nuts is about 110Nm which seemed right as the wheel material looks kind of soft.
And I had just finished the second wheel when I saw the little wire pin for the brake pad pin on the floor...
Thank god I managed to put it back without removing the wheel again.
Then turned on the Spyder and had a brake failure error message :gaah:
Turn it off and on again, and it was gone... I'm assuming this is normal and maybe it must have to do with the ABS sensor reseting itself...
Anyway I'll check the brake fluid level tomorrow.
Thanks everyone for helping.