Looking for other Mystery Ranch bags that can be use with Guidelight MT frame

[Ledanek]

Those with a Guidelight MT Frame and military-line RECCE/ 6500 bag, can you marry these two together with the right buckles?

Is it also common the name RECCE synonymous with 6500 or are they the same bag?

I'm eyeballing the Terraplane lately, but, since I got the Guidelight MT Frame already, maybe I can just get the bag-only 6500 via eBay