I just bought one from MGR that was all original with a case. I was looking at the one you had bought, in fact I posted a SAM ASH Reverb link here for that very bass as post #3242 above on this page (that you replied to).
They're actually a great well made bass. Don't let the low price fool you or the TB headstock snobs for that matter. For $299 that is great purchase. Similar to an Edge, except the top is carved. The top has a real quilt maple veneer. I like the inlays. You're lucky to have it modified as it is. They originally came with DMT pups and a Dean pre-amp. Made by the 'World' factory in Korea that has made many other basses for many other manufacturers. I really like the thin narrow flat neck too.
Enjoy it! Play the Snot out of it!!!
Here's a catalog page with some info. The 5 string version is pictured, but the specs are basically the same for the 4 string. Also an excerpt from a 2008 Price List
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@Wicked G gigs with a few Vendetta's One tuned EADG and the other BEAD
$745 in 2008 dollars
$980 in 2022 dollars