Tracker Seacraft 1991 specs

[afterhours]

I'm in the market for a 20' hull in the New Orleans area and a tracker seacraft has recently appeared. I'm on a budget and have a free 90hp Honda 4 stroke and an extra parts motor to put on a hull.

I have read the 89ish tracker seacraft hulls are longer than the potter hulls. How much longer and how much heavier?

Has anybody had a 90hp 4 stroke on a tracker seacraft 20cc?

Is a lighter 20' potter hull the heaviest I can go for the 90hp and still cruise around 20 mph?

Thanks in advance.