Longline extension using Linksys ?

I am setting up a new store, and budget dictates that we reuse an existing Panasonic phone system that provides analogue extensions. Ideally I want to extend these to the shop floor over the wireless lan.

Could I use a SPA3102 on the phone system end and a PAP2T on the shop floor with an analogue phone and plug it into my wireless bridge/hub that is providing connectivity to the tills etc ?

I'm not interested in internet telephony or links back to head office at this stage - simply a way to run my analogue phone system over the lan.

thanks