Hi cuzzie, I was at Ashdown last week, and mark is there most of the time, if you message them direct I’m sure he would answer any questions, they are a nice bunch of guys, 🙂
I was looking at AV basses and their site has various types of woods they use, it may help you to identify yours , just scroll down the home page 🙂.
https://www.avbasses.com/en/in-stock/
Hi four/five, I’m no expert but I think you’ll devalue your jazz bass by fitting new pickups given the age of it , I personally would have them rewound 🙂
I practiced it for a while just to get a few rhythms down, but slap reggae doesn’t really work 😀, but low , by Lenny Kravitz has a good little bit of slap which is fun .🙂
I started playing blues on bass in 1978 aged 14 then joined a reggae band at 16 doing Bob Marley and Augustus pablo covers , my amp was a HH ic 100s with twin 15s and this was my bass , which I still have , and it still plays 😀