Myself, I decided to go with the option to just get a bass and learn to play it .. absolutely no regrets.
Even a used bass from a reputable seller would suffice.

Because I like a small neck I got a Steinberg type bass, it may have helped or may not, just another thought on what bass to get.
I find it easier to play guitar and bass back and forth if the necks are closer in size.

I do not work here, but the benefits are still awesome
Make your sound your own!