Koga Terraliner | WTD: parts for 1x build

Frame look amazing in the flesh/ metal. Looking forward to making it my daily driver. V1 will be whatever I can get for cheaps to get it on the road with refinements later. Do you have some or all of the parts I need?

1. 1"-1 1/8" stem adapter
   
2. 10-speed indexed bar end shifter
   
3. Narrow wide chainring, 104BCD, 30-36 teeth, anything considered
   
4. 26.8 seatpost
   
5. 10-speed wide cassette, e.g. Sunrace MX3/ MS3
   
   

Ta!