I am not sure how much it costs to pay for a private reception. Regarding chair covers and chair bows - I think the cost is one of the extra add-ons. The website says its $5 per chair cover and over $10 per chair bow. I think I'm going to buy my own chair bows because you can get them for cheap.
I contacted the WC regarding TTD and Mariana wrote:
"Regarding to your email, I would like to inform you that we do have a photographer, but this person does not work on Sundays, if in this case is not Sunday the day after your ceremony I'm sure you will find her or him, but just wanted to remind you that this is not included in your package, I will recommend you that as soon as you arrive to the hotel, contact him or let your on site coordinator know about, for book your session."
Hope that helps for those of you who want to do TTD! I am still not sure how much it costs.