I have the DSE 601, its great for what it is but the atomizer cannot be replaced without purchasing the whole body. The RS-888 mini pipe or "Lady pipe" has a replacable penstyle atty and comes in automatic and manual versions (button will be on the side of the bowl should it be an auto unit). As far as adapters go, you will need a 801/302 to 510 adapter and are commonly available for about $3.
I have read about issues with the battery cap, the battery can come flying out because of the jewle caps design, FYI.
Hope that helps !
Neon.