Fixing supports sightstone problems

Hi guys, I just had an idea I'm not the most mechanically skilled person but I do pride myself on being strategically inclined in league and I happen to main support (even though it's because fill is auto support). Anyway I read some stuff watched some stuff and rito seems to wanna improve support and a great idea came up about what to do with sightstone. Should it be an automatic buy? I do believe it should be however I believe it should be viable in other lanes and have an idea as to how. In support I actually enjoy the ordeal of vision control and knowing what's happening and that I was the the reason we could steal baron or dragon or see lee coming in for a gank. The same way a support feels great for peeling and making that clutch save. The subject of sightstone is trading utility and a little health for a "laners" item or an item that compliments your character or playstyle. I feel that the idea riot had for the gold income with sightstone was a great idea however they just added utility to more utility and a nudge towards scaling. Why don't they make a variant of sightstone but with scaling for supports? (Obviously with not as much scaling as another item for the final version) Think of the jungle enchantments but on a sightstone. I'm not certain as to ratios or numbers but as a general idea they could be something like: sightstone+null mantle+cloth+??= emerald sightstone gives ?? Armor ?? MR give ???? Health (more then 800) Sapphire sightstone=sightstone+ some ap item gives ???? Health ?? Ap ?? Other (CDR move speed something) Ruby sightstone= sightstone+ad+?? Gives ???? Health ?? Ad ?? (Lethality attack speed or other etc.) Not only would this offer scaling paths for sightstone it would encourage others to take sightstone in lane so it isn't only the supports "job" to ward but as a trade off laners would have less stats then they would an item of the same cost of the appropriate correspondance. Would love your guys feedback on this.