I don't really see a problem, as long as there is nothing in the way. However, the horizontal alignment of the antenna is a bit tricky; the satellites are close together. I have had good success with the website sat.drossel-services; i.e. alignment according to the position of the sun. The website explains how to do it. Good luck
The antenna can be attached to a tube of min. 40mm. However, the holder is optimised for a wall.
Almost all receivers can be used. Technisat are user-friendly.