I used to try crazy stuff like your suggesting and generally it don't work so good.
If you do it use a cheap fiberglass fly rod and use the smallest dodger. The fiberglass seems better resistant to overload problems.

If just reaching the fishing depth (and not attracting the fish) is the problem you may want to consider using a Wet Cell 4 or 5 and slowing your movement till you get down
A Wet Cell 5 is a real zonker,close to leaded line.