Hi! I'm a lefty and I think it's ridiculous to say the "cure" is to play right handed. Can you imagine telling a righty he needs to play left handed? What's the difference? There isn't any. You're going to experience the same challenges learning bass regardless of which orientation you are.
So let's say you buy into the concept of being able to note the fretboard easier with your left hand if you're left handed. Then you're most likely going to experience challenges with keeping rhythm with your right hand. The "cure" to getting that right hand up to snuff is nothing more than playing alot and building dexterity. That's it. There is no easy way.
And I previously read this thread where someone said if you don't switch you're going to experience a "lifetime of equipment failures", and that too is just not true. Outside of the orientation of the bass itself, there's no difference in any other gear. There's no left handed amps, cause I checked

. Or cables, or straps, or tuners, or pedals, or pedalboards- none of it.
And in terms of the gear you listed? I don't believe there's any real difference. That's all entry level bass gear 101. I personally don't believe you can qualify either one as better or best.
Is it harder to find good quality left handed basses? Yes. But between Musiciansfriend, Ebay, Reverb, and the like, you can find whatever you're looking for. My collection is as good as anyone else's on TB that I've viewed. You might have to pay a few bucks more here and there, but that is what it is. Celebrate being a lefty, there's nothing weird about that.