Here are ias breakpoints, so you decide for which one will you go.
54% - 14 frames attack
75% - 13 frames attack
109% - 12 frames attack
Weapon itself has 40% and 25% you get on gloves, that is 65%. You can put 2x shael into weapon and use Highlords wrath, that will give you 109% breakpoint on ias. Also you don't have to use shaels, also can use 15 ias jewels with other mods that way. Without Highlords, 2x shael into weapon and 15 ias jewel into hat for 109% brakpoint. Or 2x 15 ias jewels into weapon and 15 ias jewel into hat for total of 110% ias. Don't know how much attack rating will you have, but Highlords Wrath will boost your damage a lot and also grants skill, 20 ias and 35 lite ress on top of that. Don't know are Angelic worth it. If you can get 6k+ attack rating from other parts of equipment, go for Highlords definitely.