Yes, that's a motor well. I have the motor, an old Sea King 7.5 hp. We tested it once in this boat on Foster Lake. Worked nicely, he then hooked up with a bad woman and it was downhill from there.
As i said I'm new to drift boats. I not new to boats, just new to drift boats. I have seen rope seats mentioned and seen pics of regular boat seats as the rowers seat. I couldn't find any examples of what this one should look like on the inter-web. I am thinking to make a lid for the "live well" with slightly high sides then lace the two sides together to make a "rope seat". Seems, from my non-existent experience, that a rope seat would be desirable as you wouldn't be sitting in a puddle and it would provide "gription" while rowing.
Speaking of rowing. I expect the pointy end of the boat goes downstream and i back water on the oars?
-when I was young the courtesy was to "never **** on another mans boat.".