Exmark Quest S (Steering Wheel) 50" ----- water bottle and other attachement points

I have tried to use the recessed water bottle location for a water bottle, but either my water bottles are too big, or the recessed hole is too small to hold anything significant... Found work around, however... used a bungee cord to hold water bottle to recessed area in the bottom of the front of steering wheel shaft... Just the right size for a large water bottle!

Now a question for others....

I would like to mount a weed eater somehow to this mower, so that I can trim up weeds directly adjacent to trees away from house, instead of after mowing, getting the weed-eater, and walking back out to where I just mowed... can anyone suggest a way adding a mount to the mower for this, and hopefully have a picture showing it mounted?

Thanks

Exmark Quest S (Steering Wheel) 50" ----- water bottle and other attachement points