MAX100 I've seen you around the basement in SGW.
I am here, there and anywhere shotguns are discussed.
If you go with a receiver side saddle you will need a short LE forend. The Vang oversize safeties are nice because they are very fast to disengage. Nordic makes a nice mag tube clamp. You can attach a rail for mounting a flashlight & there is place for a sling stud.
Rail mounted flashlights are nice because they are compact & fast and easy to remove.