Doubt - Workflow 2nd level - data in opportunity to Service Contracts

[rslemer]

I wish in my service contracts shows in registry a details from you sale

My system is organized with

Opportunity is related to Contacts
Service Contracts is related to Contacts, either

But I wish created a block, in service contracts to show same fields in opportunity
because user needs this information, and reclaim if much worked to open a link from contacts and after that opportunity

I think is possible, copy with workflow data from opportunity to contacts
and in second workflow copy data from contact to Service Contracts

But is the better solution?