looking for advice for ecommerce

hi

my customer is a butcher with a requirement to have a shopfront with pictures and prices and adding to a shopping cart... it would be good to replicate this in facebook...

i have in the past toyed with ecwid which looks good but is a bit pricey...
the shop change prices
any suggstions guys???

one other question ... i see a lot of shoptype plugins but do they all have a back office function to setup the shop... change prices add products... my customer also wan be able to review his orders and produce reports...

anyone give me some pointers please..