I consistently hear that the habba-mister is poopy-ka-ka too. Your issues with the little dripper are common to all who have or had one as well and with a mist system you can pretty much wash your hands of the dripper IMO.
I put together a mist system part by part but plan on getting a backup pump from these guys (who sell kits) which I here only good things about. They are very professional people; I got my heating unit for my GTP from them.
http://www.pro-products.com/promistproducts.html
This pumps from the kits above don’t burn out if the reservoir goes dry and you can run it as long as you want unlike the smaller pumps which limit you to 5 minute runs – they can handle more nozzles too but I don’t think that’s an issue for you. Chams typically need to be stimulated to drink and 5 minutes wouldn’t cut it for my chams. So with the low end pumps you need to set the timer for 5 on, 5 minutes off to cool down, then another 5 minutes on, and so on - a pain is the … and you know at some point you will forget to fill the reservoir and smoke the pump.
Here is an example of kit with the low end pump …
http://www.cloudtops.com/misting_systems.htm (Rainmaker Jr.)
The low end pumps are a bit noisier as well. For a reservoir, I just use a 5G bucket from Lowes - so leave that out when gettting a kit. Also, USE METAL hose clamps of the proper size. DONT use plastic zip ties or nothing at all to hold tubing on the pump/nozzles unless the pump uses a quick-connect. You are begging for a watery mess if you do.
Now for your drowning ficus, goto Lowes or a garden store and get large river stones or hydroton and put a good layer of them in the bottom of the plant pot. This will help the soil drain, also if you can, put the plant on a low plant stand in the cage – this helps too with drainage.
-roo