Looking for a group to join for the climbing on the 20th of September. it's gonna be the 1st time for me in Rainier. Previously I reached Muir, but wasn't legal to go beyond alone as a first timer. I have experience in climbing in Caucasus. Need to join a group who is going to the summit same day or just one experienced person who is legal to guide me from Muir to the Summit and back to Muir.