I haven't really been following the round table discussion but I do know that according to Natalia, the round tables are able to seat 6-10 people. I just emailed her yesterday to ask her about this as I am about to purchase the last few decor items for the reception. I also was able to finalize our seating chart for the reception.
The DJ is coming alone and setting up his own audio equipment. He will be doing the sound for our ceremony as well as for the reception. He has lights available that he could set up but we didn't opt for that. We have DJ Bijan from Mayanvibes and found him after researching online and on this forum. HIs reviews by the brides on here were good, plus he's actually a Canadian living in Mexico which worked out really well because I was able to email transfer him our deposit in Canadian dollars. The remaining balance will be paid in Mexico in USD.
As for the the vendor fee.....
A few months ago I was reading a bride's review on her florist because I was thinking about hiring an outside florist. She paid two vendors fees for her florist because her assistant went with her to set up. In hindsight, the bride would not have paid for the assistant to come as she felt the florist was easily able to set everything up on her own. Other brides on this forum have just had their outside florist drop off the stuff and the wedding team at Dreams did the setup. As for myself, we chose not to hire a florist to save on cost as we currently have a party of 62 people. We are bringing the majority of our church and reception decorations with us.