Spinal Stenosis with Scleroderma & Osteoporosis

I was diagnosed with Scleroderma 8 1/2 years ago. I was having issues with my neck, arms and tingling to my fingertips all the way down my arm. I went to a Neurologist and had to have a MRI plus X-rays. To make a long story short he advised I see a Neurosurgeon. I have Cervical Spinal Stenosis and that is causing a narrowing of my spinal column. I need major surgery on C2 to T6. The bad part is not only having Sclero but Osteoporosis to boot. I've taken 5 years of Reclast for "Osteo" but they want me to build up my bones now with Forteo (Very expensive drug) until July or Aug. when they are scheduling surgery. I was wondering if anyone of you have had to have spinal surgery with Sclero and Osteoporosis? My major question is if you did, did it heal right and also I plan on a longer healing time than the average person (instead of about 3 months I'm thinking more like 6). This is not something I'm looking forward to but if I don't have it and should fall or be involved in an accident I could be paralyzed. Any feedback would be appreciated. Sorry I forgot to include this problem is due to a severe deformity of my neck which is the cervical part of the spine and upper back (thoracic). I find it hard to hold my head up, when I walk I'm always looking down. The more I try and hold my head up the more my nerves get pinched and tingling goes down my arms to my fingertips.