I use the 2 feet of copper tubing technique, a foot or so it sticking down into the fridge. It does a good job of keeping foam down, good enough at least.
The downside with my Danby - which is maybe 6 years old now? - is the tower is small diameter and the hold between the tower and fridge is even smaller. So you can fit a single half inch copper tube with a single line in it (if your line OD is half inch or less, of course) and another line outside the tube.
But I cannot fit two half inch copper tubes through that hole.
Might be some magic diameter of tubing that will fit two lines inside of it...
For a fan mount, I've used a pc fan and had it sit on the back by the condenser plate blowing upwards, it made for much better temperatures (everything felt colder, always, without freezing) but it was too noisy and would fall.
I'm looking to get a higher quality pc fan and securing it with a bracket to the inner wall near the back, but need to ensure no lines can get into the fan blade and stop it from spinning. Need a guard of some sort...