Lawn boy rider

I am new to the site. I have a lawn boy rider. It is in the LT series, model 81191 with a 13 hp engine. I am looking for a steering tower. The plastic on the lower portion that holds the lever to engage the deck broke tonight. Also, the inside on the tower where the pivot rod / clamp and nut wedge are located ....those plastic parts broke years ago and I have been limping along without most of the plastic "fingers" but tonight was possibly the last straw for the old girl. Does anyone know of a dealer that may have the parts or a private individual that could help me out............or has anyone ever repaired those "fingers" successfully? Thanks for you tile looking forward to exploring the site.