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).
Well, not yer finest workmanship!
But I bought it anyway...
https://www.ebay.co.uk/itm/Rickenbacker-4004-Laredo-Bass-Midnight/173596874515
(This is after the event, so is not an item for sale, so shouldn't be breaking any rules.)