1.25" = 31.75mm.
itead will do 50mmx50mm in 50-lots for $45
http://imall.iteadstudio.com/open-pcb/small-batches-pcb/im120418013.html?options=cart
with $30 for next 50, $25 for each 50 after that.
Shipping likely dependent on weight, via DHL I think for the larger weights. (vs USPS Registered airmail). Go thru the order process to confirm.