VTI optics stock some of the range, it might be worth contacting them and asking if they have an 30s coming in soon. Failing that, there are some good choices from the US...different folks have their own experiences/preferences
From a stability point of view, it's quite different...with the camera on the back, you're using adapters that are all screw threaded so they don't budge and it's almost impossible for them to detach. With eyepieces, you're relying on multiple relatively small compression rings...it only takes one to loosen or slip and...thud
