They usually sell for 200000 - 350000 id just yell in general chat for tailor and look at yew gate for BS
I sold my last 120 Tailor for 500k, its not easy bribing the tailors up the correct way... not to mention the gold involved.
I spent 750k for my blacksmithy, ingot cost is insain. The house outside west luna is selling deeds for 10k iron as a example, go check the price.
I just finished dumping 80k ingots into 300 iron BODs. I haven't decided if I want to turn them in or sell them all together in a book bundle deal.