Your 1969 390-4V IP would have blue painted valve covers, a black oil cap, and blue painted air cleaner lid originally. If it was equipped originally with the chrome dress up kit option it would say that in the options list on the Marti Report.
The Master Parts Catalog gives a description of the items included with the Engine compartment chrome dress up kit.
I would start with getting the Marti Report unless you are just wanting to see chrome under the hood.
I have read that the Marti report denotes if the car had the chrome dress up kit on it or not however I am not sure what heading in the Marti would cover that. Any ideas? When I pulled this car from its long sleep in a garage from 1984 to present, I found chrome correct dated valve covers but a blue original looking air cleaner complete with correct 390 sticker on it. Not sure which was original to this car and which was not. Trying to get all correct items for a 390 isn't easy!
Thanks