The Old Timer and the Bridi Stick are the same except for the name on the box and the lower right corner of the plans. I have both. I have one with a Homelight 30 on it. I wouldn't scallop the trailing edges if I were you? I did and low speed control is lacking. You will need to brace the vertical stabilizer to the horizontal one. The vertical is not anchored into the plane that well.

The fuselage is is huge, it could be narrowed up some and maybe not so deep? Cover it with Monocoat. You could cut holes in the plywood sides to lighten the plane? Hollow the ribs outboard of the center section? Use light weight wheels.

Mine has all standard servos but there are two on the elevators.

Enjoy,

Jim