Here are a few questions regarding the "Caster Level" entry in the DMG for magical items, and how it pertains to item creation. Please, if at all possible, could you refer to the sources where you got your answers from? My DM prefers to see "documentation" about this sort of thing. Thanks in advance. 

- Is the Caster Level entry in the DMG under each magic item a prerequisite for item creation?
- Does the crafter have to meet the 'Caster Level' entry in order to make the item?
- Does the caster only have to meet the minimum requirements of the item creation feat and spell? For example, coulld a 5th-level character make Winged Boots (DMG, p. 211) if they had Craft Wondrous Item, fly and the necessary gold and XP?
- Can you set the Caster Level for any items besides scrolls, potions and wands as anything different, so long as the CL is within the minimum level needed to cast the spells/use the feat and your level?
- What are the penalties of setting the Caster Level of an item differently than what is presented in the DMG?
- If there is a separate entry for "caster must be X level" under prerequisites, does it supercede the 'Caster Level' entry?
- Do you have to meet both the 'Caster Level' entry AND the "caster must be X level" in the 'Prerequisites' entry?