The stand will basically be an 8" tall matched color/material box which will just keep the cage off the floor as cages sitting on floors quickly lose heat and also are subject to drafts. I'm sure you could put the stand on a table, then put the cage on the stand but kind of pointless imo. Mostly the stand would be used if you are going to have a stack of 4 cages since trying to have a 4' stack of cage on top of a 3' table will mean you need a step stool to get up to the top cage.

And as pointed out, you use foil tape for heat tapes. You can buy a roll of it at any hardware store. It basically is tin foil with a sticky side that you peel the paper off of and stick it down.