こんにちは。お問い合わせありがとうございます。
お問い合わせ頂いた商品ですが在庫は持っていません。しかしすぐに仕入れる事が出来ます。
ご予算はどのくらいでお考えですか?
Dear XXX, thank you very much for the inquiry.
Unfortunately, we do not have the any of the products that you have been inquired in the stock. However, we are able to arrange some to the stock soon.
I would like to ask how many is your budget going to be?