Have the invites gone out? Because you could save a massive amount of money by having a very very small wedding and reception - parents, siblings and children only.
My ex and I had a total budget of £500 for everything and we came in well below that. I think we invited 30 people total, almost all family and maybe 6 very close friends. That included separate hotel rooms the night before, honeymoon suite the day of the wedding, room hire (at the hotel), buffet, cake and clothing plus a glass of fizz for everyone to do the toast or whatever.
My sister hired a car and driver (not needed - just get a bloody Uber) and my aunty did all the flowers (not needed, they're just decorations.)
OK I'm going back nearly 20 years (oh god now I feel old) but I actually think if I got married again (perish the thought) I could almost certainly do it cheaper.
At the end of the day, the important thing is that you are getting married. Not having a wedding - getting married. You're setting your commitment to each other on a legal basis.
If you haven't booked, I'd suggest hiring a local church/community hall for an evening, ask people to contribute food, lay on a set amount of booze and encourage people to bring their own.