Hi there. Am retiring soon from my (too) long of a career in the UN and returning back to the States. We recently bought an old house in NY and it's small. I plan to make the top floor attic "A" frame into a master bed/bath suite. To do this I'll need to either raise the roof or put in two almost full length dormers. It's been a while since I did this type of work but my father and his father were building contractors and carpenters for whom I worked often years ago. I have all the tools of the trades. What's your opinion vis-a-vis cost and difficulty these days? Thanks for any advice. Cheers and best regards, Rug.