In reply to Matej:
I might get severely down voted for the suggestion, but would you consider going without a guide?
A friend and I did it a couple of years ago on minimal experience.
I’d previously been on a weeks winter mountaineering course in Scotland so had experience walking in crampons and ice axe arrest and I climb. My friend had worn crampons for a few days on a glacier and is terrified of heights.
I spent a year obsessing over the details and planning, reading trip reports and watching videos, getting my fitness up to scratch.
We spent a week in Chamonix with the days prior doing some walking and running up high, a day on the glacier with an instructor learning crevasse rescue and a day dossing about up at the aguille. We rented boots, axes and crampons and went for it and had one of the best experiences of our lives.
The couloir is a bit hairy and the scramble up to the Gouter after requires some care and is a huge slog but the rest is just a long walk up hill.
it’s certainly achievable with a bit of planning and learning without a guide and you can save all that money to buy €8 cups of instant coffee at the hut
Post edited at 10:03