CM32 trailer setup

Are there dimensions published for setting up a trailer for the CM32.  Most specifically:  What height do the pads need to be set for above the bottom of the keel (deep version)?  I have purchased a used trailer and would like to have it set up pretty close before trying to take the boat out the first time.  Also, how long is the bottom of the fin keel?

There are at least two versions of keels n the 32's.   They are not similar.  They also made steel and lead versions.

Gary,
     Interesting, just assumed it was a steel keel.  The bolts are about 6" across from each other which suggests its not steel.  The water has been warming up in the river, I'll just dive underneath and take a look and get my trailer measurements at the same time.  If it is a faired in lead keel, I guess I don't need to worry to much about the keel bolts.  The nuts on top are all but rusted off but the bolts are intact?  Still not clear how you extract the bolts to replace them?  Do you have to drop the keel?  If I put a monster wrench on the bolts, its looks like I would just break them.  I wonder if there would be instructions at the Catalina site?

Dove underneath.  There is a plate about an inch or 2 wider than the keel, all the way around.  Appears to be a welded on plate so keel must be steel.  The keel bolts go through this flange.  Still looking for the location and height above the keel to install the pads.  It is the deep keel model.  Does anyone have specs or a 32 on a trailer that could measure how high the pads are above the bottom of the keel?

Thanks,
Clark
Vancouver WA