When I had one, I used the Fender FB620. It was a good bag. I couldn't find a hard case that fits. Probably the ones used for Thunderbird basses (I have one and I think it is aprox the same length. I had problems finding a bag for my Thunderbird as well). See what people are using in the Thunderbird club.
It was curious because when I bought the bass, it was sale from a local shop and it included a Schecter hard case. When they were going to give it to me in the store, they realise that the bass didn't fit. They checked with Schecter and they didn't make any hard case that would fit.
When I had one, I used the Fender FB620. It was a good bag. I couldn't find a hard case that fits. Probably the ones used for Thunderbird basses (I have one and I think it is aprox the same length. I had problems finding a bag for my Thunderbird as well). See what people are using in the Thunderbird club.
It was curious because when I bought the bass, it was sale from a local shop and it included a Schecter hard case. When they were going to give it to me in the store, they realise that the bass didn't fit. They checked with Schecter and they didn't make any hard case that would fit.
i have Thunderbird shape and it’s not fit

. I’ve found one case that is same length as my base but dunno it might not fit it well