I was given an older jiffy model 76. im having a tough time finding info out about it. everything is about the model 70 and 30. this is my first gas auger, only used hand auger for years. like I said its old, not sure year. is it worth fixing up? I drilled a few holes yesterday and it honestly didn't really impress me. but coming from a hand auger it was 100x better! maybe a link to someone that has parts for it would be helpful?