powerlifters and endurance athletes have totally different body compositions for a reason
balancing both can be done to some extent but you will not excel at strength training being tiny and vice versa
what I suggest you do is lose the gut first.. then bulk back up your strength again but do not let your body fat get out of control. once it hits a certain point go back into a cut
Sarm's are great a cutting fat and building lean muscle mass, that might be your best option here