1. The cost of CA-7 can only be provided by Computer Associates. They base the cost upon the size of your machine, the type of contract your company makes with them, and so forth. Since pricing information tends to be confidential to each company, it is unlikely that anyone EXCEPT CA can provide you a cost estimate.
2. Since CA-7 has to be installed upon the machine for which it is scheduling jobs, I'm not sure what you mean by rental of the product. Unless you move all your processing (batch and online) to the machine for which the rental is done, how could you use CA-7 to schedule jobs?