Wireguard with multiple IPV4

[erdeed]

I have a business internet account and my Internet service provider gives blocks of IPV4.
I am looking for a Wireguard software that allows me to host my own VPN server and assign a specific IPV4 to each client or peer connected to my server or tunnel, that way any client connected to my server can have one of the IPV4 my ISP gives me and when they go to whatismyip.com, can show that IP.
Can I achieve this with Pfsense?
Right now I have Pfsense installed in my HPE Proliant server.

[Gblenn]

@erdeed How many peers/clients are we talking about? Is it so many that you need some automatic handling of it or could you manually or semi manually assign it via different IP's.

I'm thinking policy routing might work? I mean each client get's their own IP inside the tunnel right?
So under Firewall / Rules / Wireguard, if you add a policy rule per client IP, to simply go out the selected gateway??