Including hill sprints won’t exacerbate ADS, so continue with those as prescribed.
ME is a different story, but you’ll need to include some. The main priorities when getting used to ultra goals is extending the duration of training sessions and increasing your leg strength for those sessions. In a way, it approaches the same thing (durability) from two different sides. Longer and longer sessions condition you for day-after-day runs at a normal level of impact and ME work supports that same thing using a “hypergravity” approach.
In order to include some ME without sacrificing your ADS progress, scale back the volume. A good rule of thumb is ~5% of total weekly training volume. I like to use a 4-6 week average of weekly volume because one week of training doesn’t accomplish much for anybody. (And suddenly cramming volume in order to increase the volume of intensity is counter-productive.)
So if you have a 6-week weekly average of five hours per week, then limit all intensity (including ME) to 15 minutes. That 15 minutes only includes the work periods, so get out your calculator to figure out how many reps and sets you need to stay below.
The second factor is fatigue and muscle soreness. If the ME work makes you too tired or too sore to continue with your Z1/2 base building sessions, then back off even more. Swapping ME volume for base building is a recipe for disaster. Just ask the Crossfitters… 🙂