you can take the scope out of the dob mount and use it on a good eq tripod, remember dobs refer to the type of configuration , not hte scope themselves

newtonians are good light buckets , but somewhat bulky for all except the most expensive EQ mounts

for the dime you are going to spend on a good EQ mount and clamp rings , you may as well just buy a small mak cass or shmidt with an alt/az mount with tracking , meade etx line comes to mind, they are decent for astrophoto and not too pricey