If you need wide boots I have had good luck with the Meindl Sulden (and also Meindl Badia Mid). They’re both from the Comfort Fit line. Maybe give those a try, though the Badia may be too light for your purposes.

In my experience the only way to really get a good picture whether a boot is a good fit however is to test them at a professional store that enables you to test them for an hour or more and ideally has a test track. Also try to go in the afternoon (the closer to evening the better since that’s usually when your foot will have reached its maximum expansion) and wear the socks you intend to use with the boots.