I know nothing about nitro. I used to think I wanted something nitro to work on, now I pretty much gave up on the thought of it. Brushless motors and LiPo batteries are to thank
.
I do know I would get the Optima up and running (was it ever running?). Depending on what the incomplete Optima needs, maybe it's more feasible to get a new kit. If they don't mean much to you, sell them, and get something new. If you're like me, you'll have sellers remorse, and be wanting your RCs back (especially the Optima
).