I'd like to install my stove pipe/chimney through the very peak of my outbuilding. I think he design of my roof would allow for this since there is no ridge pole running down the length of my building. I saw two versions of the 6" flashing I would need when doing a general search online, but they were fairly costly. One was $170 and the other was $150. Just wondering if someone knew of other sources for this piece of hardware. THANKS!