Body man with over 20 years experience, I do this on the side occasionally still.
Send pictures of the damage and I can give you a run down of how and what will be used to fix it, and give you an estimate just from that.
I charge a flat $50 dollar fee for MOST bumper dents. Im Fully transparent and will tell you exactly what to expect.
I come to you and fix it wherever you are. Send me a text or an email, with information and pictures of the damage and ill tell you what I can do for you.