With zero pressure in the struts, you've got to lift the whole weight of the top and it's heavier than hell! I used a block and tackle from the shop roof. The rear handles were strong enough to take the load on a Komet..............Should be OK on a Cobra. Have 2X4's ready to prop it open and be carefull ..............its little more than a gilatine! Three man job, one on the hoist and two placing props.
Let us know how it worked out,
JJ