I have acquired a new Robin NB253A (24.5cc) string trimmer engine and now looking for the shaft and gear assembly to complete the trimmer. Can someone please recommend where I can purchase the shaft and gear assembly for a cheap price. I believe Dolmar and Makita shafts will work with this engine. If I am unable to find a matching shaft & gear assembly, is there any other use for this engine. If possible, I would like to use the engine for a gas powered hedge trimmer. If you want photos, I can post them. Please provide feedback.