Two options come to mind.
First, keep an eye on the parts for sale forum, many members parting trucks can help you. Members: teeitup, Cash3481, tkorinek, Classic Bowties, Pickumup and others are some I have dealt with and alway been satisfied. Just keep watching parts forum for what you need, they will show up in various conditions from NOS to good used driver quality.
Second, consider becoming a dues paying subscription member. $25 yearly fee is some of the best money you will ever spend on your truck. Gives you the opportunity to place Want To Buy, For Sale, What's It Worth and actual trucks for sale. Receives world wide viewship. We have members from England, Norway, Germany, Spain, Brazil, etc. Lots of fellow truck nuts here,
And lastly, Welcome to the finest truck board you will find on the net. When you can post up some pics of your truck, we do love to see pictures here.