Okay, I’ve taken strings out ( well done 👏) ,and had a look at the saddles etc. I also put strings in the relevant nut slots ( leaving the G and E strings off the bass).
From what I can see , it looks like I’d be able to have a 5 string set on there omitting the G .
Putting the strings back on is a pita , so they are left off .
I’ve left a message with a tech at my nearest shop ,asking if it’s possible for them to fit a 5 string set on the bass. I await their reply by phone .
The shop don’t do Warwick strings , but I’d assume that with the techs filing and endurance and experience they will be able to fit a set of dadarrios on there .