Specifics on mobile suits are currently unavalible because I honestly know nothing about them ^^; Images are also unavalible, unfortunately. However, what is listed below is the descriptions given by Wikipedia.

Heine's first suit was...
ZGMF-600 GuAIZ Experimental Firearms Type - The successor to the GINN series. Features beam weapon technology derived from the stolen EA units. Comparable in performance to the stolen units.

Heine's second suit was...
ZGMF-1001 Blaze ZAKU Phantom - High-end version of the ZAKU Warrior, a commander class unit. It is equipped with the same beam assault rifle as the ZAKU Warrior, but carries two beam axes. The ZAKU Phantom mounts the same Wizard units as the ZAKU Warrior.

Heine's last suit was...
ZGMF-X2000 GOUF Ignited - Production model of the ZGMF-X2000 GOUF Ignited, for use by squad leaders and aces. Indistinquishable from the prototype, aside from the blue and white color scheme. Heine's was a prototype and custom painted orange.