1- did they use the white or yellow cords in the end on the dolman and barrel sash ?

The cords were yellow, the rest was white.

2-the black sheepskin saddlecloth did it have red coloured wolfs teeth ?

red, but no wolf's teeth, just a red stripe all around

3-The sabretaches on campaign were they covered or full coloured monogram exposed

I never came accross any source that they were covered

4- the trousers did they have any stripe down the side or not?

This was left to the regiments to decide (if yes, a small red passepoil), but they had to pay for the red cloth themselves. I don't know contemporary images of this regiment which show this detail, nor any written source mentioning whether this was added or not.

You find some quite good and detailed images of Prussian hussars here:

http://www.napoleon-online.de/html/pr_juegelwolf_unkommentiert.html