Thru hull ducer - revisited

[Rich]

So I got a new fish finder, A raymarine Ds600x with the thru hull ducer. My plan is to flush mount it, the high speed fairing block is a monster and wont work well for trailering.

My plan is to do something similar to this:

Thru hull ducer

I was thinking that I could create a fiberglass shell of the ducer and then cut it into the keel stringer right in front of the livewell. Secure it properly with epoxy and glass, and fair it appropriately.

Should I consider moving it off center the keel stringer? If installed right down the keel, will this affect performance of the engine if it is flush? Also should I drop it a 1/4 of inch or so to be in cleaner water?

Any suggestions or comments?

Thanks,

Rich