Yes, you can do this. The web resource can take the ID of the current record, and you would then do a query or queries to the REST service for related records and properties. Start with some sample code of how to build a REST query, I would recommend
that you use this tool...it will save you a TON of time.
https://crmrestbuilder.codeplex.com/
Then look at how to pass information to your web resource
https://msdn.microsoft.com/en-us/library/gg328034.aspx
From there you will have to build a HTML table with your results to display on the form.
Good luck!