Unfortunately one can not compare specs between a 2 valve head and a 4 valve head.
General speaking a 4 valve engine needs 10 to 15 degrees less duration to make a comparable torque curve to a 2 valve engine.
Also there would be little to compare between a hydraulic valve and mechanical, except maybe event timing might compare. Not the case here.
You might want to add the 3.5 DOHC timing to the list.
One thing to note on the DOHC is there is no change between the intakes of a NA engine and a boosted one. The 3.5 did change the timing but not the duration if I recall. The exhaust side of the TT has more duration to drive the turbos, not a comparison the a Supercharged app.

You might want to pull specs from the 2.6 to compare since that engine will be closer to what you are doing. It can provide NA car and truck as well as a turbo application.
We never got the last 2.6 head here that has a similar combustion chamber to the 3.0 but the 2.6 never had straight intake ports to truly get the flow up. A problem that goes back to the late 60s when that engine was developed, the days of swirl rather than the tumble of todays combustion process.

I would consider swapping the cams to answer the what if question since it would only take an hour longer than getting the valve covers off, which might take a day for all I know. But personally all the readings in the books are talking of more optimized power with cams specked 20+ degrees longer than you are working with when they refer to changes between NA and boosted.
Your engine might benefit from an increase in lift with a touch more duration, Kind of like the RV cams of the past. Just to let the air pass through.