Scott A. Reed
If you want to, you can list the games individually and the person can buy them all from you at the same time. They can do that easily by looking up your games for sale from your profile. Make sure in the listing for each you put "reserved for xxxxxx"
An easier way would be to lump them all into one item for the total price. BGG will still get the same cut. The only downside is it will create an outlier in the Price History.
#1 creates data for the price history function on BGG, #2 is more efficient. Go with whichever you prefer best, but if you use #2, please do it in a Miscellaneous Placeholder game.