Hi Steve, real sorry to hear what happened. Really is disappointing after waiting all that time.
Unless I missed it, have you contacted the seller to see if something can be done or get some money back to have repairs done?
Like others have already mentioned, don't jump ship yet. You already spent some money on it. Take a break, take a deep breath and just take one step at a time. To be in this hobby is not a fleeting thing but inside you have a passion for cars. I don't think that passion has died but right now you need some healing time.
If that previous link is the link to the car, at least form those pics it looks decent, WAY better than what my car looks like. just go down the list, one thing at a time and I think you'll get your smile back.
Weh life gives you lemons, make lemonade. If you get rid of the car, what will you have? You already made an investment into it.