I have a Tasco 900/140 reflector telescope. My wife threw out the eyepieces so now I'm looking to replace them. The diameter is 0.965" which limits my choices. I know the telescope is not great. My choices seem to be a 0.965" Plossl (few choices), a 0.965" to 1.25" adapter, or replacing the focuser with a 1.25" one. Advice???