Just a few suggestions since I built this plane..........
If you're buying just the plane confirm that it comes with the the following........
1) Assembly manual...if not, this can be downloaded at the Hobbico site.
2) The pane comes with all the hardware...landing gear, pushrods, wheels, guide tubes, engine mounting, etc.
3) All the wood components to complete the build.
4) Gas tank.
These may seem like insignificant things but as you assemble the plane you will not be able to progress thru the various stages until you have these items. Does the Tx/Rx come with servos?
These will have to be installed. You'll need 4. The aelerons require one to operate both aelerons and, depending on the wing joining method, will have to be mounted a certain way. The standard SS 40 hardware comes with a "clamping" type arrangement to mount the engine although it can be alternately (and most preferred) to drill and bolt the engine on.
Not familiar with that particular engine but confirm that it will physically fit the plane. I know the OS 46 FX will.
Just thought I'd try to be helpful since there's nothing more frustrating than getting the plane almost finished then having to go back and make changes to fit the guts. If your model doesn't contain most of the items I mentioned, then you're really into a pure "kit" scenario. Make sure you're buying the complete assembly. Looking into the SS 40 (non combo) unit would be the better way to go if your purchase doesn't include all the basic parts.