CRM platform integrations

I would like to integrate/sync 3 platforms together to help me organise and manage by business.
The 3 platforms are
1. Hubspot.com
2. Bark.com
3. Freshbooks

I can confirm all platforms sync with Hubspot and are in the Hubspot App store.

https://app-eu1.hubspot.com/ecosystem/26561329/marketplace/apps

https://app-eu1.hubspot.com/ecosystem/26561329/marketplace/apps/finance/accounting/freshbooks

https://app-eu1.hubspot.com/ecosystem/26561329/marketplace/apps/marketing/lead-generation/bark-218198

I would like this to be done as soon as possible.

The candidate may need to research a little on how this may work and how all platforms can be used together and taught back to myself.

If the integration goes well there will be more work for the successful candidate