I had EPR 1.82 in the tables and was hardly able to climb out.

So I double the "EPR is broken" statement, you can't work with that here.
The checklists e. g. mention the EPR bugs to be set but there aren't such things and I have to admit that it would be easier to leave them out (and the checklist item too then) instead of implementing and then feeling the need to revise the whole engine model which currently is done "straight FSX".

This FSX model gives you some "thrust machines" but it doesn't reflect the starting process and e. g. spin up times of the real thing.
Some might blame Captain Sim for going this way (as they do this on the other aircraft too) and I do too somehow, but this still is one good 707 representation and another nice solution would be, if they gave us tables for this special engine model together with the settings needed here.
I could live with that and it prevents all of us from going "full throttle" only like some sim beginner would do all the time.

So far, she seems to be able to go via the real world speed charts, that's a big pro.

But going with the real world thrust tables will disappoint everyone around and one should be aware of this.