any coffee grinder should do - they all have the same basic design.
They might be cheaper locally rather than buying from Amazon after you've included the shipping. I picked one up for $15.
I can't imagine cloves/cinnamon/peppercorns damaging the blades unless you consistently filled it to capacity so the blades had a hard time rotating freely.
one of the members here taught me to grind a piece of bread up after grinding up the spices to take away the strong essences of the spice before grinding up coffee again
- neat idea! I just use an old toothbrush to clean under the blades then a slightly
damp towel to wipe it out thorougly and I make sure it has aired completely before putting it away. Clean it after every use whether you use it for coffee, spices or both.