Instead of struggling with it all yourself, hire someone at a reasonable price.
Check out Fiverr.com; I have had a good experience getting pro-quality drum tracks ordered from a player there. You pay, but that is one way to get good quality. Same if you don't feel up to doing the bass. You set up an agreement, send your guide tracks (including the click track) and let the player work with that.
I typically use MT Powerdrumkit VST for the drum track, and Ample Bass VST. But then again, my drum tracks are usually not the strongest part of the song!! Still that's likely user error rather than the tool itself.
I typically use a DTX402 kit to service as a "bridge" between the kit itself, and between whichever DAW I am using. That way I have access to a wider selection of sound libraries/VSTi's during the live performance process. This also allows me to micromanage all the internal mixing and tweaking independently (from the kit itself). Which is a MUST if your interested in getting synthetic drums to sound as organic as possible.