If you could help me appraise these items that would be great.

1. Unbreaking III Effect IV Silk I Diamond Pickaxe X2 Price: $ 10-20K
2. Unbreaking III Effect IV Diamond Pickaxe X3 Price: $ ?
3. Efficiency II Diamond Pickaxe X1 Price: $ ?
4. Unbreaking III Fortune II Diamond Pickaxe X1 Price: $ ?
5. Unbreaking III Fortune III Diamond Pickaxe X1 Price: $ ?
6. Efficiency IV Silk I Diamond Pickaxe X1 Price: $ ?
7. Unbreaking I Efficiency I Diamond Axe X1 Price: $ ?
8. Efficiency I Diamond Axe X1 Price: $ ?
9. Efficiency IV Diamond Axe X1 Price: $ ?
10. Unbreaking I Diamond Axe X1 Price: $ ?
11. 5 Stacked Iron Swords X1 Price: $ ?
12. My Book by Sitomo X1 Price: $ ?
13. HERSTERER by Welikeike22 X1 Price: $ ?
14. Saddle X3 Price: $ 200/ea