Files Needed for Ollie King on MAME

So, I'm new to MAME and arcade emulation as a whole, but I decided to try and see if I could get Ollie King for the Sega Chihiro to run through the MAME 0.217 version. I've done my best to try and locate all of the appropriate files for the game (with many being found via the bda page here--for which I am extremely grateful), but I have been unable to find 5 files that are listed on the missing file error window when trying to boot the game. If anyone can provide a lead as to where to find them--or even the files themselves--that'd be very helpful.

The needed files are as follows:

• sp5001.bin
• sp5001-b.bin
• sp5002-a.bin
• 315-6215.bin
• 315-6301.ic11

Is anyone able to help with my current problem?

The error window shows between the brackets after NOT FOUND which romset those roms are from.

Or you can see the romsets required at Arcade Italia's Arcade Database:
Click on "Show Mame required files" at http://adb.arcadeitalia.net/dettaglio_mame.php?game_name=ollie

Ollie King is marked as non-working in Mame.

 Ah, thank you for the swift reply! The link you provided seems like it will be very helpful for locating the files I need. I remember seeing that Ollie King is marked as not working on MAME, but I thought I'd give it a try just to see how far it gets past boot. I really appreciate the help.