My suggestion is to keep an eye on the Icetrades section, find an Argonavis to attach to your dob, the Argonavis is easy to use and you'll easily be able to push to your target of choice.
If money's no object you could just buy a new one with encoders for about $1K.
As Stu pointed out, you really need to master collimation as your views will likely be less than optimal if you don't.
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