Gomer.
I would highly recommend you get the MK Quick Release bracket to mount your Terrova. I got one because I needed to move the motor off the bow to put on the cover I store it with. The bracket makes installing the motor a snap. The one problem I had, which may be yours also, was accessing the underside of the deck to hold the nuts when you install the "puck" that the motor mounts onto. I actually got my arm stuck under there and wondered if I would either have to gnaw my arm off or call 911. I was able to finally get all 4 nuts and bolts installed. The way the unit works, you intall a base unit on your deck with 4 botls and the mating part goes on your trolling motor. It is all predrilled and fits perfectly. It is so much easier to install the small bracker than trying to install the motor directly to the bow, plus you can take if off if you need to in about 10 seconds. (You can lock it in place to keep a thief from stealing)
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This is the link to the one I used. It is for the 12 volt model. Minn Kota MKA-21 PowerDrive Composite Quick Release Bracket on eBay!

Good Luck, you will love the Terrova.