We'd have to defer to draft guru
@manxman2601 for this one, as I honestly don't have enough knowledge to have an informed comment. I just didn't follow the pre-scouting process and draft as closely this year.
I know this is going to really be considered "out there," but I'm starting to wonder if Kline won't be in the mix for LG duties at times, considering the fact that we just don't have much to choose from? If you look at it that way, then Wendell could very well stay at RG (his more natural position, as you state).
Of course, if Jackson were to start in week #1, that would likely mean that there would be a battle of the following at LG:
1) Wendell at an unnatural position
2) Kline
3) Rookie Shaq Mason