Hey All! Ready to update on my Surface RT experience. I'm going to mark this thread as "solved" - it was rather easy setting things up on the Surface.
I won't bore you with how happy I am with it (so far), as this isn't the thread for it. But to get Outlook set up with my then-in-use PST file was a breeze.
I copied my PST to a thumb drive, & after getting the Surface initially set up (mostly updates, setting up the work space the way I wanted it & adding apps) & cleaning up the file system, I copied the PST & some other stuff to the Surface HDD.
I set up Office 2013 (that's what it's called on the Surface RT, & it functions in mostly the same way as it would on a desktop) & added my email accounts to Outlook 2013. With each account (I have 4), I was given the option to specify a new data file or use an existing one. I pointed my accounts to the file I copied over, & after a few very minor tweaks to my setup, I had all of my contacts, calendar events (complete with categories as I had them set up), folders & all of my email. It worked seamlessly. Also, since I have outlook.com accounts, they all sync between the tablet & my phone, as does my OneDrive. So I'm happily using the Surface as my "laptop" & unless I have any "heavy lifting" to do, I'm not using my desktop very much anymore. That's good because I have to do a fresh Win 7 install anyway.
But I have everything right there, I can do most of my necessary work (which includes research & website updates for other entities) right from the Surface & it is a very useful machine. Of course, the price I paid on the Microsoft-refurbed 64GB model made it a really sweet deal at this point.
Bottom line, for me it works, & getting it set up was extremely painless (for Office, anyway), & I'm a happy camper!
Thanks for all of your collective tips, help & other assistance. I'm sure we'll "run into" each other on the web in the future!