Buyer to Seller SMS Sales Offer Text Alert

Hi, thanks for taking the time to offer you help with this.

I will be starting my first WP site project soon and would like to know if there is a plugin that would allow a buyer on my site to send a simple, quick and easy text message to a seller with a price offer. I would like to put a make an offer button next to their listing so it’s clean without going to some user mailbox or outside place to send/receive these offers.

Behind the scenes we will have their mobile numbers stored in a database so we will know what mobile number to send the message to. I was considering using Member Mouse to allow them to manage their credit card, password, and billing information but I’m not sure if it could work with that or if this would function separately as its own stand alone plugin.

Example:
Item for sale – Widget123 Price – $1,234
Make me an offer —> sms/text field <button> (something like that)

I would like to be able to allow them to send a quick text to the seller so they can make an offer to buy the item to help facilitate the initial transaction before speaking over the phone once they have agreed on a sales price. Hopefully this will speed up the process.

Any information on available plugins would be greatly appreciated. Thanks