We need more details about your question. Is the system working as it should? Has it been converted to 134? What exactly are you looking for?

The a/c unit is a collection of components. There is absolutely no need to replace ALL components in order to restore it to its proper function. If it has been converted to 134 and you want it to cool properly, you will have to flush the system thoroughly, replace the filter drier and convert back to R12.

Good luck,