How long to wait after a PM has been read?

[Cool.Breeze]

Hey pony people~

I got a pm on Saturday from someone asking about a few of my ponies, I replied that I'd get back to them asap with a quote and they said no rush. I sent them the shipping quote last night; I didn't get a reply, so I sent another message to them this morning explaining that I'm looking to put a lot of ponies up on eBay and wanted to know if they still wanted the ones they asked about. I see that both PM's have been read and the user in question was last active 2 minutes ago. How long would be appropriate to wait for a reply after a PM has been read before going ahead with selling them elsewhere? I'll gladly sell her the ponies, but I'd like to get that lot posted as soon as possible ;^^ Thanks for reading!

[ponylady]

I would probably give it 24-48 hours at this point, seeing as you have sent two messages and both have been read. I personally feel that is ample enough time for a response.

[Cool.Breeze]

Awesome, thanks for the advice Ponylady! Much appreciated

[Ringlets]

*agrees with Ponylady*  ^^
 Hopefully the person will respond - its only good manners to reply and let you know even if the person has decided not to buy them.