I'm in a similar position - although it wasn't a great deal of money by many people's standards the bass I have paid the most for is the one I like the most. It is my Maruszczyk Jake 5.
I need a very light bass (8lb/3.6kg ideally) because of my back. I need 5 strings and prefer narrow string spacing. Just a combination of those three things filter out the overwhelming majority of basses on the market. Add to that I wanted a passive Precision basses both in terms of sound and aesthetics. As far as I could find there was nothing off the shelf that ticked all these boxes. Using the Public Peace custom shop website I was able to make choices that mattered the whole way through and have the exact bass I have been looking for. Got change out of £1500 including a hard case and shipping.
I've played and own/owned other lightweight 5 string basses, some very cheap, but there has always been a compromise somewhere along the line. The Jake is exactly what I want.