An "Oleh Chadash" Buying Furniture and other Items during the Three Weeks

Question: We are making aliyah during the Three Weeks and are bringing very little with us. Is it permissible to purchase furniture and other items upon arrival in Israel?
Answer: Yes, on account of two reasons:
a. The Shulchan Aruch (Orach Chaim 551:17) says that one should be careful not to recite Shehechiyanu during the Three Weeks. We thus see that this is a custom and not a full-fledged law.
b. The custom is not to recite Shehechiyanu as not to say: "who has kept us alive, sustained us, and enabled us to reach this time," but there is no problem to recite the blessing "Ha-Tov Ve-Ha-Meitiv – who is Good and causes good." Since the furniture is for the benefit of entire family, including the beds - sometimes one person sleeps here and sometimes there – we do not recite Shehechiyanu but rather "Ha-Tov Ve-Ha-Meitiv."
But this only applies until Rosh Chodesh Av, since the Shulchan Aruch (ibid. #2) says that beginning on Rosh Chodesh Av, we limit doing business.