I knew my order was partially filled because I didn't receive everything I had ordered. His paperwork that he includes in the box with your stuff usually includes highlights of the stuff in the box and/or a note that something wasn't included (or will be set at a later date). You may be "missing" it but he likely isn't.
And then he keeps a box open in his shop with your name on it waiting for the remainder of your order to be available to ship.
Certain items, such as the quarter panel mount, bushing press tools, and anything else machined, etched, or otherwise produced by him and his subs (and not Toyota or others) can have lead times since, in the past, he has this stuff produced in batches to meet the rhythm of orders.
That's worked pretty well until he can't get some sort of needed material, has to change powder coat supplier, or something else related to the crazy world we live in occurs.
We are all so used to just ordering on
Amazon and having our useless s*** on our door the next day that it's hard for some of us fanatics to consider that supply chains and logistics issues can grind doorstep deliveries to a quick halt.
Any time he has to take away from getting the s*** you ordered in the box with your name on it, even if you think it only takes 45 seconds (which it doesn't) removes him from the effort of getting your full order fulfilled.
Have patience my young capitalists or justifiably spend your money elsewhere.