Originally Posted by BeantownFixed
I'd like to try and do it myself, obviously it'll be more expensive because I have to purchaser a chain whip and lockring spanner but it's the principal damn it.
There's always this alternative to installing/removing a cog
without a chainwhip:
The Rotafixa Method
Of course, you still need to get a lockring tool. But the abovementioned method does work.
Once you've installed/removed the cog and ring you'll be surprised how simple it was.