I’ve always used a planetary mixer to make dough, the first time I saw a spiral mixer, I thought to myself “WTF is that piece of garbage”
but now after using a spiral mixer for the last year, I do not see myself ever doing dough in a planetary mixer unless I am absolutely forced to do so. Yes, they are that easy and that nice for dough.
To grind my sausage, I use tabletop powerhead unit that takes a #22 grinder attachment, Check out these guys, >>>
http://www.waltonsinc.com/ they have some heavy duty home grade, and commercial grade grinding equipment for a decent price, You may also score on craigslist I suggest using
adhuntr.com to search all of craigslist nationwide.
I mix my BBQ dry-rubs in my spiral mixer, and it actually works quite well for mixing my sausage, the heat generated is minimal, so smearing the fat has less chance of happening.