Noise is still an issue, but even a simple RC filter does a lot of good. Unfortunately, we are still missing the electrodes for the ecg but with a lot of pressure (and pain) we managed to get some readings ;) This is without the filter and with some saturation problems.

This is with a simple 10 uF-330 Ohm resistor rc lowpass filter

Notice there's a small drop in the noise. The scope picks up this way better. Some hardcore software filters should do a lot better, coupled with better electrodes. Anyway, for such a rudimentary setup, it's quite alright.

Further testing required:)