Putting a Dob on a diet!

My portly 16" f4.5 Nightsky is wonderful, but....after 2 years of ownership, my back is a bit sore, and I'd like to get the mirror box as light as I can. I am unable to use ramps because of the location, and my 152 pound frame struggles with the 69 pound mirror box. I'm really not interested in removing the mirror and transporting it. I just need to be lighter, and manage 4 steps and 45 feet a bit better. My first idea is to chop the bottom of the mirror box, cut the adjustment screws a commensurate amount and then move the altitude bearings accordingly. Any input as far as hole cutting, trimming the top, easily modifying the mirror cell to lighten it, anything. If this dob doesn't lose weight it will kill my back and mirror. Thanks
Mike

Well,
3 weeks later and the Dob's diet is complete, I shaved 11 pounds off the mirror cell/box and another 5 off the groundboard/rocker. Additionally, I lost 2 inches off of my EP heigth. I'll post a few pics. If anyone wants help with their Nightsky, a router and sharp circular saw and drill are all you need. The 11 pounds reduced the weight of my mirror box/mirror/cell from 72 to 61 pounds, it is certainly welcome by my back.

Attached Image:

Well done, now to add a couple ounces of black paint to the inside of the box. Side note, the desk in the background seems to have lost some weight too!