Pig on the Spit Indoors

We are hoping to have a pig on the spit for day 2 of our wedding. the problem is our wedding is in March and with the chances of weather not being great we are wondering if it is possible to have a pig on the spit indoors? Maybe this is a ridiculous thought and we would have to have an outdoor area to have it. We are thinking of booking an area in a pub and perhaps a beer garden would be able to host the pig on the spit. Any previous experience of such an event for day 2 would be great.

My best friend had this for her evening buffet and it was served inside, I assume it was cooked elsewhere and then brought in warm in time for the buffet!

Oh that's great thanks.