@LennyRhys, nice to se the progress my friend :)
As for selling, I'd set yourself up an email specifically for selling the buckets (that way you won't get your personal email spammed with requests), and have the people wanting to buy them email you a request there.
From there you can either set up a new PayPal or email people with your PayPal details once you have worked out the costing, and just have everyone send u funds as to friends/family rather than goods/services as you won't lose anything in fees then.
Then u just post out the kits when funds are in ur PayPal :)