A DIY'er can certainly do it. All you need is someone willing to help. (it will take 2 people) a roll of duct wrap, several rolls of foil tape, (5 or 6) a tape measure, an insulation staple gun, a box of insulation staples, a utility knife, a pair of longnose shears, a LONG sleave shirt and long pants, several disposable filter masks for easier breathing of the insulation particles floating in the air
, a 2 gal pale of mastic to seal all the joints, and a couple of days to do the job. Sounds easy?
does it not? $1500.00 sound like a pretty good deal to me.