my advice, since you have all the material already, is to build up the plane and go and fly. Most probably the weight will not prohibit you of flying the sportsman schedule.

Then go and compete in your local district in sportsman. I seriously doubt anybody will weigh your plane.

By the time you are able to compete at a level when weight becomes an issue, you will be on your next plane.

In general, the materials you have are all on the heavy side. Put all the bits together is and it is quite overweight. If you go and fly electric you have to choose your components carefully, especially if you don't have a multi$$ plane to begin with. Read as example the old thread on the Fliton Element (which was a great flying airplane despite being a bit overweight).

Volkert