Okay, you drips...

I am an old school dripper. I've tried the tanks, they all seem to lead to my vape tasting metallic and they lead to chain-vaping. So, recognizing my penchant for dripping, which of the RBAs would be easiest for a rba noob? I am not talking about the cheapest, but the one that should be fairly easy to build despite limited experience? Which has the best flavor (why I continue to drip). This would mean which are comparable to dripping on 510/306 atties.
On another note, would this mean I would need/should need to buy a big battery mod? Yes, I drip in an ego w/510/306
Aside from flavor, the other reason I vape is to replicate the act of smoking an analog. So, in a 10-15 min session, I only have to top off once or twice. I think I may save some $ with rbas... not entirely sure. The only other thing I can say is I don't want a new hobby, so if rebuilding is "fussy", I may be better where I'm at.
On another note, does anyone know where to find delrin whistle tips for 510s?
I appreciate any help/advice.