There were some of these kicking around for a while at a shop here in NYC a few years ago and I agree with your assessment completely. I also thought they were awfully heavy for hollow basses and pretty expensive for what they were. Too bad, since the looks were absolutely boss.
Those Jack Cassidy's, while excellent basses - really, are also pretty heavy and sound, to my ear, more like a solid body bass than a hollow. They're not very thuddy, either. They're actually pretty bright and articulate, which is no surprise given it's Jack's signature bass.
Those Guild Starfire IIs are also not thuddy - at least not if they are true to the originals. Those basses actually had tons of treble! Kind of a moot point anyway as they're over budget.
A Dano short scale with LaBella flats and a little bit of foam under the strings near the bridge can deliver quite a thumpy sound. I'm a bit surprised you didn't have the same experience.
As far as I can tell, the Woody is everything you're looking for. Never owned one myself, but The ones I've played impressed the hell out of me. I don't see anyone doing much better in terms of bass for the money in the arena you're looking in. Both the Hofner and the Ibby are cool basses, but I think you'll get a bit more versatility out of the Woody, personally.
Lastly, to the TB community: Am I the only person left who still reads down the entire thread before responding to this sort of question? The OP (who has a fantastic screen name, BTW) very clearly stated - multiple times - a budget of under $800, a requirement that the suggestions be hollow or semi-hollow and a thumpy tone. He wasn't ambiguous about these points at all. I know everybody's just trying to help, and I don't mean for this to be a rant because I know everybody's responses have been in the spirit of helpfulness, which is what TB should always be about, but come on fellow TBers; we're better than this. Let's try to keep our help focussed on what the OP is asking for. Okay, I'm done venting now. You all may proceed.