I have an Ilfochrome P30.2 kit I'd like to finish off, opened approximately ten and a half months ago. I assume the bleach and fix should be fine, but any advice on the developer?
If using the Ilfochrome developer is an unwise option; considering the nature of the Ilfochrome process, should a standard black & white developer suffice or do I need to mix a formula from scratch?
I've used such a kit in the course of over a year, and the kit was opened many months before I finally finished it off. I had to use very different filter settings at the end, instead of Y20M30C00 I had to use Y00M40C40 for proper color balance. I can't tell you whether the paper or the chemistry was the main reason for the change.
I'd say give it a shot and be prepared for large changes in your filter settings.