I can't speak for anyone but myself, but I would appreciate it. Either method is fine, although I would prefer the double installers, personally. What you decide to do aside, thank you for your continued work on your repacks.
I know that the R8 to R9 update wasn't possible due to the size limitations presented by the installer you use. Once you change installers to one that can handle the update, will there be an R8 to R9 updater released or is the R9 full download an inevitability for continuing to patch the game...