OK, might work if you put _a_lot_ of effort in it.
I don't say it's impossible.

If you use one _system_ it's easier to get a specific result.
As I charge my clients per complete system including programming it has to be payd. Either the material or my additional time. I prefer material as it costs me less headache and I can do more as time is somewhat limited (we only have 24h/day, ya know? ;-)

If you are working on your install on your own and don't have to pay someone else for it, all is fine.