Peru - Shipping all of my purchases home question

I read on a travel website that Star Peru will limit the weight of my checked baggage to 20 kilos (Ayacucho to Lima). Not a problem when doing "regular" travel but I anticipate a little power shopping for tapestries and other Peruvian crafts. So..... what is the best way to ship my purchases home, from a small town like Ayacucho? Suggestions are welcome.

Probably a good bus company has it's courier/cargo service. I'd suggest to research in the web. Cruz del Sur has it's cargo line. And there's an english version of its webpage. Ormeño is good too but I think it has stopped passenger services to Ayacucho.http://www.cruzdelsur.com.pe/consultas_2.php

I've heard about Expreso Wari too but has no reference about its service.