I will be fishing in early sun rising morning… The river section I will mostly fishing is about 4 feet and has a really light green color waters almost clear. What would you recommend for fast flowing waters, is there bass there?! Am I right in spinnerbaits since of the reflection of light by the lure and the spinner?!
a watermelon colared 4 inch senko and a watermelon trickworm rig wacky riged or texas and fish it slowly and if done right will catch you fish!
What is the most suitable field set up for an off spinner in a limited over game (20 to 50 over game)
Depends on if the track is a turner and what your usual line of attack is. If you bowl an offstump line with the ball turning in a smidgeon, I would recommend the following with the 9 fielders available to you (10th being the WK, 11th being you):
1) First slip (for the one that goes straight on)
2) Short 3rd man
3) Fine leg
4) Long on
5) Long off
6) Midwicket
7) Point 
Backward point
9) Short extra cover