LBS dug thru their supply and found an FSA cap that worked.

Now onto the BB, which is giving me troubles threading in. Thinking I will need a tap to chase the threads.

Here is the gap:

https://imgur.com/a/BXbPkrD

Here is the headset diagram:
https://images-na.ssl-images-amazon.com/images/I/71bkKANrk9L._SL1500_.jpg

I can't use parts 6 or 7 because they appear to be built into the frame.

I recently received my  "Toray Carbon 29ER Mountain Bike BSA 19" MTB Frame 142 * 12mm Thru Axle Included" from eBay:
https://www.ebay.com/itm/Toray-Carbon-29ER-Mountain-Bike-BSA-19-MTB-Frame-142-12mm-Thru-Axle-Included/333038613564?ssPageName=STRK%3AMEBIDX%3AIT&var=542086430407&_trksid=p2060353.m2749.l2649

The headset I bought: "FSA No.57 Orbit 1.5 ZS 1-1/8"-1.5" Sealed Bearing Tapered Headset #XTE1530 " :
https://www.amazon.com/gp/product/B07D59M9QB/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

I seems to work for the most part but the top aluminum part that says FSA, seems to not sit flush against the bearing.
Did I buy the wrong headset?

I believe this is the frame I would like to get from Ebay.

I would like this groups help in picking some parts.

Mainly the wheels.

I would like a 1x setup, Shimano XT, hydraulic disc brakes, Fox fork, and thru axles front and rear.

https://www.ebay.com/itm/Toray-Carbon-29ER-Mountain-Bike-Bicycle-BSA-19-MTB-Frame-142-12mm-Thru-Axle/232865062412?ssPageName=STRK%3AMEBIDX%3AIT&var=532394942850&_trksid=p2060353.m1438.l2649