Hi Glynco.
Yes, you can purchase a single domain Copper membership first and upgrade later. You will have to contact us when you are ready, as this needs to be done manually, but is absolutely possible.
We do not have a money back guarantee as we have put a lot of blood sweat and tears into Morph. To allow people to download it, install it, and use it, then request a refund would not be prudent for our business.
Also, just in case you do not know, we have a full
"try before you buy" area for you to play with Morph.