How to configure dhcpv6 with issuance of real addresses on pfsense via wireguard?

Question

VPN

Pfsense 2.5.2 as the main gateway on the local network, it connects via a wireguard tunnel to a vps with a /64 ipv6 subnet. Now everything is implemented like this - pfsense issues ipv6 addresses of the local network fc00:1::/112, acting as a gateway, then traffic goes to fd42:42:42::4(ipv6 address of wireguard's interface), from it to the server, and already on the Internet through nat. Now I see two problems - 1. The abundance of nat in the network, I would like to use /64 subnet and give each client a real ip. 2. Not a big problem, but for some reason, clients on the local network do not receive ipv6 after starting the system, I have to register dhclient every time, which is not very convenient, how to fix it? Since I am dealing with ipv6 for the first time, I could miss important information, please forgive me and turn to the comments.