I have come across a Binks 2 1/2 gal pressure paint pot. Was told it has not been used in 10 + years since work is being out sourced now. So he is not sure on working condition of paint pot. If I decide to go look at it, what do I need to be concerned with or what should I be looking for? What type of price range should I be looking at for something like this? Will be modified for casting purposes. Thanks for any info...