You've almost got it. Google will help you with AoA and climb angle.
It's not so much a case of lowering the nose but a case of rotating slowly, remember we are still on the runway at that point. Most modern flight directors will command your speed to about V2 with an angine failure so it would be just a simple case of following that. However, we are allowed to dispatch with an inop flight director so in that case we would generally aim for an initial pitch angle of between 5-8 degrees, which should be there or thereabouts anyway, trim things out and watch the speed trend. From there it's the same as two engine flying except you have a lot less performance.
Of course practice and experience will help but sector to sector things like your weight and the weather will all change so speeds and pitch angles and performance will all be very slightly different.