2) Is a little more complicated, but if you use this link and change out a section and use it as the search bar you can see a list of best offers in the search area.
http://www.ebay.com/sch/?_nkw=cobb+%...ipg=200&_pgn=1
Where
cobb+%28sgc%2Cpsa%29 is the search for Cobb (sgc, psa). This way you need to know some things.
+ equals space
%28 equals (
%2 equals ,
%29 equals )
I have been using these two ways this morning and it has been helpful so I thought I would pass it on.
Happy 4th.