My second wedding, in midlife, was really small and perfect.
What we spent money on:
A limo because I wanted to arrive in style
Also, I took 7 little kids in it and they loved it (all under 10)
Waitrose food delivered to a friend's house as she hosted 6 of us in the evening Gifts for the children to keep them occupied, crayons, that kind of thing
Rose petals for confetti and for the tables
My dress, but it was less than £200 and wasn't a wedding dress, it was purple
My hair, but only usual hairdresser prices
Paying for everyone's food after the ceremony in a bistro (few hundred quid)
What we didn't spend money on:
The marriage venue - it was a registry office but one in a beautiful building
The venue for food afterwards, we found a bistro with no hire charge
A photographer, a friend took photos
A cake, my sister made one
Flowers - I had a bouquet (I think?) but not an expensive one
Rings, they were £35 each
It was an amazing day. There were only our immediate family there, our children, my 2 best friends and their children, so a total of about 18 of us.
Most people came to the ceremony, came to the bistro where we had the whole floor to ourselves (weekday! 3pm!) and then went home. DH and I then went to my friend's house where we had an evening of Waitrose food and Champagne, just my 2 friends, their husbands and us. It was perfect.
My sister made a speech, we didn't bother with a gift list and we arranged it all in 21 days. Invitations were by text followed by a homemade card in the post. It was over 25 years ago and we're still together.
My only regret is that I didn't lose 5 stone beforehand but oh well. I still haven't so if I had waited we still wouldn't even be married now and some of the people who attended are dead now so I'm glad we did it when we did.
Good luck! ETA rings