P68 Cold Air Intake questions

I have a Harman P68 pellet stove, After I installed the cold air intake hose, I was no longer able to install the center lower sheetmetal cover because the intake pipe interfered with it. I could not bend the cold air pipe enough (with out kinking it) to get the sheetmetal cover to fit. Are there any P68 owners out there that can offer any advice? Does Harman make a adapter? Please advise