My interaction with the FAA went smoothly years ago. Here recently, it's been a different story. Like you mentioned, I selected "built from parts" since I did not have a bill of sale for the kit. I sent in my PPWK in along the kitfox letter, and kitfox form printed from their site. They sent it back stating that the wording on the bill of sale was wrong and told me what to write. I was confused since I did not send in a bill of sale. Apparently they considered the kitfox letter and the kitfox form..... the bill of sale. They sent it back to me and followed up with a phone call (I could obviously tell they knew they made a mistake) telling me to remove the statement that I was told to write originally. I did as they said, sent it back and got my registration card a few weeks later. Yay! Confetti, champagne!
FFWD to my DAR inspection about 2 weeks ago. Everything good to go. Got my AWC. My DAR said that my plane was the best built airplane he has ever seen and said that I could probably be the head a boss at NASA with my building skills. (I made the last statement up.... I don't want to work for NASA)
Happy day, Yay! .....confetti and champagne....AWC in hand!
Yesterday I get an email from the FAA saying my AWC application was denied. Grrrrr!!! Very frustrated. I called the DAR and he is trying to figure out what the FAA did or is doing that caused this. Obviously a PPWK issue with the FAA since he (DAR) would be the one to issue a Denial letter for an unsafe plane and he did not.
So needless to say, it's hit or miss with the FAA. I am wondering if my debacle is because I selected "built from parts" and the FAA is basically saying, no, it's a kit, because you have a bill of sale....albeit, one that they basically created.... but technically, there is now a bill of sale.
Hope yours goes more smoothly.