03 Grand Marquis part # confusion or possible southern engineering fix

The corrugated line coming off the evap purge valve that connects to the intake manifold/throttle body needs replacing. I am not sure what is the correct part number or name.

I also am hoping there might be a cheaper fix with standard fuel line that I have plenty of and a couple of fittings. This is all chasing P0308/P0304 P0300 and other codes in which a fuel filter, one coil pack harness connector, cracked intake manifold, purge valve w/charcoal cannister, gummed up throttle body flap have all played a part in.

Any and all help is appreciated Friend/neighbor has a 2003 Grand Marquis with the modular 4.6l v8 and we have been chasing compounded problems; rough running, codes, emissions, air susp, front susp, rear end, etc. I have knocked most of the them out. The vehicle has over 250k miles but good bones and he is a Veteran with limited income. My time is irrelevant but anything that reduces cost is a bonus.

Thank you