Is $390 to replace AC Receiver Drier, shrader valve and 2 hose seals right?

What is your question?

Freon was leaking from my AC. The shop put a dye in to isolate the leak and when I brought it back told me I needed a new AC Receiver Drier, needed to fix a couple of seals at the end of some hoses, and replace a shrader valve. Said parts were about $100, and the rest was labor - just wondering if this sounds about right? Thanks for any advice.