chevy8401

So, I have a 2001 chevy 2500 with a 6.0l LQ4, (which everyone tell me it the same as a LS but in the truck version). I am using the engine in an older project and see that there is an EVAP system. Is there a way to adapt and aftermarket tank, or does anyone make a block plate to do away with the sir solenoid on the intake. Also, I saw a 2006 express van air filter assembly on ebay at one time and wondered if it would fit on my carb. Thanks for any input.