RX7 over an NSX, I had a NSX-R GT, was an amazing car but also extremely expensive to maintain, and if you don't have a specialist work on it for things like clutch changes they can easilly damage the chassis and subframe.
I'd recommend an RX7-FD3S RZ.
Or if you really do want an NSX over the rx7, try and find a used GT2
Or like my friends! check it out.
Yeah I'm leaning more towards the rx7. It just the rotary that has me a bit nervous. Good thing ls swaps are common so it shouldn't be a difficult task to turn it into a monster. And its a dang sexy car.