When my husband died, we had discussed it and agreed on a direct cremation followed by a ceremony in the village hall. He had said he didn't want to waste money on a fancy funeral but wanted his friends to have plenty to eat and drink to mark his passing.
I found a local funeral director who was very happy to do as we wished. They collected my husband's body from the hospice and kept it on their premises until the cremation date - this was arranged by them with the crem, in an early-morning slot not popular with regular funerals. We provided the clothes he would wear and even a piece of music they said they would play, although we would not be there.
Then a couple of weeks later we held our farewell ceremony. It was quite similar to a funeral, but instead of a coffin, we had my husband's ashes, displayed in a miniature beer keg (he would have loved that!) We had eulogies, poems and music; then we didn't have to drive off anywhere else, we just moved the furniture around and served refreshments. There was a lively, positive buzz about the place and it all worked out very well.
The funeral director advised us not just to have a party; he said, and we understood, thatvpeople need to have some serious, reflective time to say goodbye - and then make a break before the refreshments and the "party".
The actual cost of the cremation and the funeral director's bit was about £2000, which meant we could be generous with food and drink etc. I have told my daughters that something similar for me would do very nicely when my turn comes.
Re the money: the bank will normally release funds to pay for a funeral before probate. I think we sent the bills to the bank and they paid them directly.