$200 is probably going to be a bit of a stretch to be honest. Best bet is to save up and get a decent system. The Argo has one huge advantage in that it is Aussie made and Gary's customer service is second to none. He recently spent about 30 minutes on the phone with me discussing a small issue with a cable.
I have heard of a system called Nexus which uses an interface with a mobile and have seen some reports indicating it works OK, but how it goes for hardware for a GSO/Bintel dob I am not sure, while Gary is definitely able to set up hardware for your scope to operate on Ago. the link for Nexus is here if interested
http://www.astrodevices.com/products/Nexus/Nexus.html
Don't completely give up on star hopping. Once you have found a few targets it gets easier. Often times it is a matter of how you go about it. Firstly, decent charts make a huge difference. Minimum IMHO is Sky Atlas 2000 but I love Uranometria 2000. Then get a table to put the charts on and a red headlamp. Dress warmly and be patient. I always use a red dot finder or a Telrad to locate that first star, then switch to using the finder for the fainter ones. Locate a bright star near to your target that you can see naked eye then plan out your star hop, then go to the scope, use the red dot finder to get it in the view of the finder and the main scope and then start hopping. The hardest thing is working out the directions, but it becomes second nature after a while.
After a few successful hops the sense of satisfaction will be obvious!!
Cheers
Malcolm
