Answer:
The desirable characteristics for the members of a contemporary constitutional convention would be:
Diplomatic
Analytic
Ethic
Environmentally oriented
Critic
Empathic
Professional
With a strong CV in public matters
Explanation:
The contemporary members of a constitutional convention would be diplomatic because this characteristic would allow them to debate, negotiate and agree without any conflict.
They should be analytic because they should evaluate all arguments, proposals and defy them with arguments, to see who has the reason.
They should be ethical because they should be unwavering about influences, bribes, and wrongdoings.
They should be empathic because they should have the ability to understand the other's point of view and help someone else.
They should be professional because that would allow them to have high levels of responsibility in their actions.
They should have a strong Cv in public matters because they should know everything about in bureaucracy, in the use of influences, and the opportunity areas of the system to improve it.