Bruce, actually, the mounts are set up for it to be a puller, a major majority of rc airboats are pullers, mainly because of the advantage of the props air cooling the engine. And thanks for informing me about remote needles, now I see what the difference is, just a re-located needle, seems safer so I'll go with it, good suggestion.
The Tower Hobbies engine is a remote needle, I said wrong in my first post, so I'd go remote needle with either engine I choose. So plane guys, GMS or Tower Hobbies engine? GMS is a good brand, rite?
Thanks.
edit: The picture(on websites selling the kit) simply shows the Big Swamp Buggy as a puller like most of the rc airboats are. The reason for the two blade prop in the picture is they recommend the underpowered engine(.40) making for 15mph(ish

) speed so that's why it's a 2 blade prop in the picture.