I don't think Hewett is a win even at a 95 average.
IMO,
Players that will average 105+ : Stewart, Lloyd, Whitfield, Crisp, Rocj
Players in the 100 - 105 range: Short, Ridley, Heppell, Dawson, Hall, Dale
So let's just saying Hewett averages 95 - which is almost 10% higher than his best average season, and 22% higher than all his seasons but one, you're looking at the BARE MINIMUM, a 22 x 5 = 110 points loss for your D6.
The expected/likely loss is probably close to 200 points, if not over 200 points.
And any cash gained wouldn't be actionable, as you would've only gained like 70 - 80k.
Seems like a very, very low % play with Hewett, hard pass for me.