If you ask me, if at all possible don't set it up on a skeet or trap field. Limits the spread of the machines.
Also, don't put machines in permanent buildings accept for tower or elevated platforms. Portable trailers is the best as you can easily move the machines.
If I was building a new 5-Stand I would instead put in a PARCOUR, as seen in FITASC. Fewer machines and can easily be set for those just wanting to have fun or set for the more experienced shooters. But, thats just me...
There are several clubs around here that have used their spare Winchester Western clay throwers in their 5 stand like this. If money is tight, this is a great option. Ian Brotherston - Western Retro Products