I found some pics of the tuners on your bass (I think the 5 uses the same tuners as the 4 string version)
Hipshot HB6 ultralites would probably be a good choice, but check the dimensions of the existing tuners & the holes they fit in to ensure that they'd fit.
The US-made ultralites are reversable so buying five would enable you to reverse one, but there is also the cheaper 'licensed version' which is not reversable.
https://allparts.uk.com/products/hipshot-hb6-ultralite-bass-machine-heads?variant=54942187880831