IMO - you need to decide how perfect your pour must be... and how much money you are willing to spend to get there.
I have a keezer downstairs pumping up to a tower upstairs (lift of about 10 feet). I insulated teh 1/4 inch beer line in basic $1.13 per 6 feet of pipe insulation from HD. everyone told me I would pour foam all day long, it would never work, etc. It does work with a few caveats.
1. if I don't have a brew for a few days, I probably will pour off the few ounces in the beer line.
2. On super hot days it sometimes foams for the very first part of the pour (bringing the line temp downward), then is AOK from there. My fix for that was getting 20oz glasses. Let's me have a 16oz pour, with about 1 inch of foam, perfect.
So yeah, if I let the tap sit for a few days I pour off a few ounces here and there of the brew. However the cost to put in glycol and make it perfect and on demand is astronomical compared to the $10 in tubing I spent.
Point being, if you have to discard a small amount to clear your line, or get some initial foam, can you live with that? I buy my grain in bulk, so I sure can.
I say start simple and see if you can get it to work. If not, then decide how far you want to go.