Plain water with plain Sea Salt is good (about one tablespoon into a quart. You'll see how much dissolves; for me it's a little under a tablespoon. But I have big tablespoons!)
Burdock root tea is good.
Half aloe, half water is good.
Do look into the P&B shake and see if you can get that moving successfully through you. The B (bentonite) does a good job of soaking up toxins.
Regarding sending items to PR, you can always check with Julia Chang (email or phone)to see what it would cost. I think it's around $18 to the US. But, people like it -- so it's probably very worth it (I haven't used mine yet).