QB wing gap fairings RV-10

Gents
To rivet the w-1021 fairing to the rear spar, the call out is for AN470 rivets. Due to the inboard lower skin already in place, bucking those are an issue. What alternate blind rivet has been used in this place. Outboard of the riveted in place skin is easy.
If there is a call out for the rivets in question, I have missed it. Thanks

I was able to get my arm in and buck all of them as I recall. I have thin arms. I suspect a structural pull rivet would be acceptable for those you absolutely can't get to.