HI Raymond
Ive done a lot of research on the ESB Boba , heres a link for a better view of teh ESB suit .
https://www.rebelscum.com/gallery/fett-pw/default.asp
Definitley check this out , you will notice that AB Armour really isnt curved , but heres a tip you could try , Hot glue each side to the jacket tat way its nice and tight and will semi curve around his lower abs . Thats what i did for mine , most people dont realise the AB armour , and teh paint colours are dead on to the original custome , check the the links and you will see what i mean . The only thing thta is different is the flak jacket colours and the sleeves arnt matching . The only realy issue that bugs me now is the missing the triangles on his helmet - im so frustrated but i can live with it . You should definitley check out this link , you will feel better about your boba thats for sure.