Fran,
When I was 30 years old I lugged 120 full-size railroad ties on my shoulder, one at a time, from the end of my driveway to the front of my house, a distance of about 90 feet. I used the to construct a 2-tier retainer wall measuring just over 80 feet long. Last year I had to rebuild the wall--age and weather finally took its toll. At age 68 those ties feel twice as heavy, therefore, I opted to enlist the aid of my 40-year-old son who is much stronger than most folks I know. When the job was finished, which took four days, he said "Now I know why you had two back surgeries!"
As for Boo, he told me he has a bad back as well from all those years of brick and block laying. Come to think of it, nearly every general contractor I know has a bad back.
From the description it sounds like a first class instrument. From the perspective of someone that lugs his keyboard in and out of one to two locations every day of the week it sounds like another bout with the neurosurgeon. NAH! I'll stick with the lightweights.
Cheers,
Gary