the green one is a Aquacraft Alligator Tours boat that you can buy for 250-300 RTR
the only problem is they will flip easy. mine has been widened 4" to stop flipping and so far it hasn't flipped.
i have 3 other types homemade flatbottom
SI 3-20 hydro (3 point boat) kit 140.00 building now
and a sidewinder SS made in Lakeland FL 350-600 depends on size i bought all my store made boats used