Hope this email finds you well.
There was a delay in response from buyer, which object me to reply you in time.
This is to update you that buyer and his management team had a comprehensive idea of the given proposal. Quoted price is accepted and well perceived.
However, he needs a minimum of 1 and a half-year, in order to gather funds for this mega project. In addition, 30-day clause stated in proposal is well-aware.
Please rest assured that we will be able to secure this deal and this buyer will surely becoming your customer in near future. For more information about this buyer, he actually owns one of the well-known hotels in Thailand.
I will keep you posted on the update constantly. Please maintain our good relationships.