Cheers Jacqueline and Joseph, welcome to Bike Forums.
Joseph, your friend's list covers some of the tools/spare parts you might need. In addition you'll have to consider clothing, toiletries, food and drink, where to stay during the nights (bring your own shelter vs. other accommodation), whether you'll need a camping stove and fuel, sleeping bag, sleeping pad etc. There are several packing list examples posted in BF and also elsewhere in the 'net.
Another thing, your friend seems to have averaged nearly 150 kms per day. Every day, one day after another. The fact he only lists tools and spares leads me to wonder if he actually didn't bring much anything else with him. There's nothing wrong with credit card touring, but please realise very few cyclists on loaded touring bikes realistically budget 150 km per day averages, sustained over several days.