You should be able to order a Kit without registering neither on this site (express checkout) nor on paypal.
Please read https://ixox.fr/preenfm2/ and make sure your skills will allow you to build this Kit.
KIT
It's your responsibility to solder all the components to the PCB and make PreenFM sounds !
PCB
PCBs are sold as is. All the informations are on the website.
You may ask for more information on the forum.
Xavier Hosxe