So I've been shopping around, and I've narrowed what I want down to a pretty specific area. I know people will respond with alternatives to this, which I appreciate, but what I'm looking for is essentially a Warwick Corvette 4-string active neck-thru. Does this exist or will I have to get it custom built? According to Warwick's US website, the Corvette is a bolt-on bass...but I swear I've seen some NTs, that aren't $$. Please advise. Thanks.