I know who carries all of the parts U might be looking for, your Mac eng and mounts. His name is Mr. Red Smith, he is in Texas. Phone # 1-469-688-7016. And Rick Whrittridge his no. 1-937-878-2598. Tell them that the Inventer gave U their #. Hope this will help U. Have fun. One other think, I built an ELECTRONIC ING, on my Mac-90. and removed the points and Mag. If anyone is looking for this convedrsion kit, I build them. Anyone can install it in 10 mins or less. Price is still pending, less than a 1000 dollars. I want too make this Item affordable and NOT sold as Aviation Prices (HIGH).