Make a decision on what dojo to train in before you go to Iwama.
There is the Tanrenkan dojo run by Hitohiro Saito sensei
http://www.iwamaikido.com and the Aikikai Ibaragi Branch Dojo under supervision of Isoyama Shihan
http://www13.big.or.jp/~aikikai/ with several of M.Saito senseis senior students teaching.