Slightly belated - I bought a Markbass cab off Andy and regretted not having his 2nd one too.
I finally bought another (for the same price) last weekend!
You could maybe improve it by swapping the neck for a Precision one, putting a hi-mass bass bridge at the end of the body, and whanging in a Precision pickup there (you'd probably devalue it though if you had to hack the pickguard to fit one).