I have an original Domke bag from the seventies and recently thought it would be nice to have a carry handle for taking the bag in and out of the car etc. I bought the deluxe carry handle and then realized my bag doesn't have the d rings for attaching the handle clips. Do you have the d rings available to retrofit on the bag or know of another solution? I hooked onto the shoulder strap rings but don't see it as a good long term solution since it pulls the canvas loops on the bag at an angle. thanks