Best way to go about building a jig for a bonded frame?

I am designing and building a bonded aluminum high pivot enduro frame, but don’t exactly know how to build my own jig for the assembly or what I need to build it. If anybody has built a full suspension front triangle id like to hear about it. The rear triangle and lugs are going to be entirely CNC machined, but If I have all the aluminum tubing for the front triangle, what is the best design to correctly mate the lugs and the tubes? I have seen Neko’s Bonded DH frame and am wondering how easy it is to create that same bonding interface where the tubing and lugs meet. Also, what bonding agent is recommended for a project like this. Thanks.

3d printer and a sheet of MDF. Print blocks to hold the key parts in place that bolt down the the MDF sheet to hold them in place. Don’t over think it.