I have a 1stGen V7, one of the very first ones with a signed neck plate.
It's pretty much stock. I did replace the signed neck plate with a standard looking chrome one (the signed one is in my bass bits box in a cupboard). I also put one of those rubber neck plate gaskets on. Other than that, some Schaller strap locks and D'Addarrio Chrome strings.
The neck is great, it's really easy to play. Even though I've not been in a band for ages, so I don't play much, I'd have to be flat broke to sell it.
2nd Gen 'improvements' aside, when I look at the current price of Sires, mine was a steel 😁