Hey, I've ordered from Samuel Decal several times over the past few years. He used to operate a website but chnaged to using Facebook recently.
To order from him, you just browse his gallery and see which decals you want and at what scale [1/144, 1/100 etc].
Note down the design name and send him an e-mail at
order@samueldecal.com. Lists down what you want [Name of decal, decal version and decal size] and if possible, include the price to make it easier for him to confirm.
If you want to pre-order limited edition stuff or bootlegs kits, you can also do so.
Once he receives your e-mail, he will send a Purchase Order in PDF format. Check the list and once everything is okay, make paymend in USD to
order@samueldecal.com at Paypal. Note that the final cost will include the delivery cost.
Yes, you do need Paypal or alternatively, you have to do it the Western Union route.
Usually, it takes about 1-2 weeks for the registered airmail to arrive in an envelope or parcel depending on what you purchase.
His decal quality is quite good for an aftermarket part. Usually it's not pre-cut, so you have to carefully cut it yourself. The decals are also quite thin [Thin decals are good as it reduces silvering] and the designs are quite attractive.