I just did a bit of epoxying on my wooden boat this winter (new keel, new aft deck, sealing CB case) with West Systems epoxy. I found it much easier to work with than some thicker alternatives I’ve tried.
My tip: buy the little pumps that fit in the mouth of the hardener and resin cans and dispense the right proportion of each. Mix in paper cups and apply with those little disposable foam pad brushes.
I found the pumps took the stress out of measuring, wondering how much you need, how long before it goes off, etc. You can just pump, mix, apply, and then just mix another batch dead easily if you need more.