Need help combining some scripts

I have three scripts that I run in PowerShell to get some information I need from remote workstations. I would like this to be accomplished with just one script instead of three. What I need to get from the remote stations is:

Hostname IP Address MAC Address Operating System Determine if the workstation is a 32-bit or 64-bit Serial Number or Service Tag Number

I need to be able run these scripts using a list of either Hostnames or IP Addresses in a text file or csv file. The reults also have to be exported to a CSV file.