Oh that length of time to do everything makes me anxious, but each to their own and it's your time so you use it how you like. This is my morning routine 6 days a week, horses have 1 day off a week.
3 riding horses come into their stables.
Put all my tack 3 saddles on the wash box saddle stand.
Grab first horses bridle put on it, less than a minute lead to the was box check girth area for dirt and do feet, saddle straight on hat on gloves on schooling whip. Tighten girth, lead to the menage and then final tighten and hop on rode for 50 minutes ish.
All tack off and hose off, I hose them off everyday as they're usually sweaty. I'm lucky they all stand with out anything on while I do this so makes it quicker. Scrape off unless a boiling hot day. Sun cream on, fly cream on. Pop back in their stable and feed if not too warm still.
Repeat for all 3. And turn out. Clean tack but just a wipe over with horsemans. I also get the saddle ready for the next day so I can pick it up in the morning and everything is all there. So saddle, then a fresh numnah, any extra pad they need , then their girth and bridle. It saves me so much time faffing around first thing.
Someone will then skip out refill the hay bars ready for tomorrow morning.