1983 Ram 50 4cy turbodiesell 4D55 Engine parts need

[waltershirk]

This is my field-find. Sat for 7 years unprotected in a mountain field. Owner said if you can start it you can have it! A little wiring repair from the rats, a new clutch master cylinder and battery, a little started fluid and I drove it home! Recently had a timing belt failure and broke the rocker arm for the #1 intake cylinder. Found all the other parts needed through local sources...not so much luck with the rocker arm! Any recommendations?
Thanks in advance for any leads.

Walt

(Sorry in advance for any procedure/protocal mistakes-this is my first experience with this Web site)