customizing vic hard bags

have a set of hard bags, love them BUT i would like larger ones, i seen a set of corbin bettle bags, with out the grouve cut out for pipes that go for a indian bike, but the top is very small. any ideas that will work custom these larger, ? harley bags anything. heres the bike

The Beetle bags are different from the other Corbin bags you are talking about. Those bags are the Fleetliner bags.

You can modify bags easily if you have the correct mounting system. The main problem is clearing the rear pulley.

This is my buddies KingVegas (Vegas with KP parts) He has the Corbin Indian Beetle bags.