here in the forum we are users like you, sometimes you will find here an Adobe employee.
If I understand you in the right way: you want to save money, ok?. In this case I would download a Indesign try verson, to bridge the first 30 days. For the next period, you should buy a 30day "Single App" of Creative Cloud pricing and membership plans | Adobe Creative Cloud (see screenshot)
... and as an addition: What concerns your second 30 days, please have a look at http://www.adobe.com/misc/subscription_terms.html >>> Month-to-Month >>> The service begins when we confirm your initial payment. We will charge you the fee stated at the time of purchase monthly until you cancel. Once the fee has been charged at the start of each month, that charge is final and no refund is available. The fee is subject to change—but we’ll always notify you beforehand. You can cancel anytime by visiting your Manage Account page or contacting Customer Support. Canceling your membership stops the charge at the start of your next billing term—but your service will continue through the end of your current term.
Thanks both. This is really helpful. I'll give it a shot!
Much appreciated : )