Determine feature implementation order

In order to help persuade Mistermind to work on certain features in a certain order, who would be willing to donate towards a particular feature to have it implemented ahead of another?

Either using Kickstarter / Indiegogo or even just the Unity store.

Put up the features as per Season 3:

Tag Team

Disjoined Rectangle HitBoxes

3D Arena Gameplay

UFE 2D

If using the Unity store, pick a nominal value for each feature and then people can purchase it in the store as a pre-order.