Howdy, I have experience setting up and using Copper, Zendesk, and Hubspot, and also heard a lot of good comments on Pipedrive, it looks like the integrations you're looking for are pretty standard. I can also help you out designing your 'customer journey' or pipeline , help you with scripts, landing pages, google Adwords, Facebook Marketing, Mailchimp, Just Call ( in case you plan to coldcall), etc. Also have resources in mexico such as data scrappers , and native english speaking callers/customer support agents.
Can I ask you which niche are you targeting? I'm also open to hop into a call or chat in order to see if this could be a good fit
Best Regards.
Carlos