I've recently been debating whether or not to buy a bass vi, so in the sport of "budget bass vi" I knocked one up using bits left over from old projects.
That's an Encore short scale bass neck with two extra banjo tuners, and a left handed 80s Hondo body (wired direct to jack). The bridge is a cheapo hardtail strat replacement type. The nut is 42mm with "strat spacing".
Stings are Ernie Ball 6 String Bass (90-20w). The G is just long enough.
The nut spacing seems fine, the bridge spacing could do with being a smidge wider. Obviously access to the dusty end is limited.
Sounds OK. The guitarist in my surf band is using it on one song, through a guitar amp, as a "lead bass" kind of thing and it's particularly good for that.