RE: Four Stroke Engine in Tower Trainer .60
jmcowart
In general I think that a 91 four stroke (not familar with 95) is a great engine for just about any 60 size plane.
My advice to a novice is usually find a field, find an instructor, buy what the people you will be relying on for help like to work with new flyers with.
When you bring what you want you should be able to work through the problems yourself. There is plenty of help here and other places so you can be totally ready when you get to the field.