It is actually a myth that it's bad luck for the groom to see the wedding dresses with sleeves or see his bride in her wedding dress before the ceremony. The ritual is that the groom doesn't see the wedding dress on or off the bride before the wedding so he will be surprise at how beautiful she looks coming down the aisle.

The cost of alterations to a wedding dress depends on how drastic the alterations are, where the dress is purchased, how quickly the alterations must be finished, and if any wedding dress uk materials are needed for the alterations. Most dress boutiques have an on-site alterations specialist or tailor who can discuss the alterations (and their cost) you are considering for your wedding dress.

I personally would go to a place like Etsy.com and search for someone to make it for me. They have this tool called alchemy in which you can put in your plus size wedding dresses and different businesses can bid on it. You can also set your ideal price which is a great thing. There are plenty of professional designers on there.I hope this helps! Congratulations! I hope you find what you need.