NO!
1. I think $3,000 is to high for 4800 points in Las Vegas.
2. I think $700 for closing costs is too high. Definitely over charging.
3. $315 for transfer fees sounds like an odd number?
References:
http://timeshareresaleclosings.com/fees.html
http://www.hgvclubprogram.com/content/2014-HGVClub-Fee-Schedule.pdf
NOTE:
Check out the TUG Market Place. There are 2 EY 5000 point HGVC TS's for sale for $2500. One at the Flamingo and the other at the Hilton/Karen site. Demand to use a closing service like JRA Services: very competent and reliable, recommended here on TUG, and a lot cheaper.
LASTLY:
I just noticed that you are a guest. You'll need to join TUG to see the TUG Market Place. You could also place a want ad in the Market Place, that's how I got my HGVC TS, got what I want for the price that I wanted to pay.