Establish a new Title and Purchasing/Rewarding system...
---{New buyers would look like this}---
Contributor (can upgrade later to Sponsor or Patron minus Contributor cost)
Sponsor (can upgrade later to Patron minus Sponsor cost)
Patron [At highest tier already]
---{Old backers would look like this}---
Bronze/Iron Founder (only original rewards)
Silver Contributor (Original Silver & Contributor rewards)
Gold Sponsor (Original Gold & S