Who has mounted a fish finder on the front of a pontoon?...

We are getting a G3 Suncatcher V322 FC with 2 fishing seats up front. I believe it has a basic electronics device at the helm, but I'd like to add a better finder up front.

Questions:

Any recommendations on brand/model? I don't need a flat screen TV up there - we just fish for fun, not competition

Can we mount the transducer up front or does it need to go to back?
With that - do they all have to have a transducer and do they come with one when you buy the unit?

Was thinking about getting something where I could mount the transducer to the trolling motor and keep it all up front - is that an option?

I think that's it - I'm a newbie with boat ownership and electronics - so any help/advice is much appreciated!!