You really need to discuss this with our doctor. LE is very hard on the back. I made it 32 years before I got hurt. It's been two and a half years since I got hurt and I still have pain almost every day and forced me to retire a year sooner than planned.
You really need to think this out on a long term basis.
Ask "Retired" about his multiple back surgeries.
If You Heard The Shot, You Weren't The Target