I would not focus so much on the make, as long as the glass is thick. If you want to clear the bowl with minimal hits then get a bong with a large chamber.. maybe something tall check out this place http://www.herbtools.co.uk/bongs.html
I found a UK headshop where you can buy a bong. Pretty cheap and they got some nice bubblers as well. Most of the stuff on there is actually pretty cheap in compariosn to some shops
3rd one
But its a bit thin for a percolator, i'd go for something like this http://www.herbtools.co.uk/bongs/percolator/black-leaf-double-black-percolator-bong.html
You can easily get a cheap bong for less than $150 brah
most shops use a delivery service so it probably wont be the mail man, unless thats the service they use