its a really easy job to do yourself, I did the guide and I was a real noob.
if I can do it anyone can.
a lot of people do burn them out but the smoke is horrid, either way you'll be left with the collars to remove, but the hacksaw method gets it done, just be careful.
when I did mine, I went the extra mile and took the rear beam off and refurbished it, only 4 bolts and a fuel tank to remove (I replaced the tank too)