Believe it or not this is close to spot on for you. I've had reasonable success using something similar (225 lbs to 185 lbs with minimal muscle loss) while using 5/3/1. I would agree with upping fat, to 20%; reduce protein to about 30-35%; and fill the balance with carbs, mostly from rice and potatoes.
I know this seems counter-intuitive and I'll get a fair few people disagreeing. Check my log for my before and after pics if you want.
I would urge you not to reduce your calories yet. You should do fine at 2600 cal/day for at least three months or so. If you do 5/3/1 properly, you'll need as many calories as you can have especially while in a deficit. Gradually lower your calories, by 100-200 per cal/day as you go.
I don't mean this nastily, but you're probably closer to 25-30%. Don't worry. You'll get there, just be patient and consistent and trust the process. It takes around a year if my experience is anything to go by.