Hey Skilatchi!

I'm not familiar with the uc_hotel module personally, but after glancing through the description it seems like there is a good chance it will. The down payment is setup as a "Feature" for products that you can enable so it works with the normal Ubercart checkout flow nicely. Do you know if uc_hotel does anything in particular that might be likely to cause a conflict (any major changes to checkout flow or product configurations, etc.)?

If you're up for $100 I think we're all set to release this!!!