As far as the drilling part. Did you just drill a hole in the pump area, then one in the engine compartment and then push the stainless steel tube through the foam and hope to hit the hole on the other side?
and the hole on the pump area is reasonably close to the hull. How did you get a cordless drill with a standard length drill bit in those tight quarters?
From looking at several build threads and based upon the measurements I took from the bottom of the hull to the tubing, I could see that the standard bilge tubing is angled up hill slightly.
So I drilled my holes where I thought they should be accounting for the angle (sorry, I don't remember the measurements).
At the rear of the hull, I placed a couple of black marks and a 3/8 drill bit to ensure I was always drilling at the angle I wanted.
In the end, I was off maybe a 1/2'' vertically (low), but nothing a slight bend in the tubing couldn't fix.
As far as the drill and bit, I used a standard size craftsman drill with one of these bits after I got the pilot hole started:
http://www.harborfreight.com/3-piec...dium=email&utm_campaign=0113a&utm_source=1009



I pulled the last picture from someone's build thread (don't have link as I saved the picture to my desktop). Which shows the slight angle.