A couple things..
Are you building a new set from Vans? I'm not sure if the newer kits are pre-punched or match drilled, but the legacy ones like I had to build require full layout of fasteners ect. They need built in a "V" jig per plans to keep them true , or you can try without on a flat table. Fairly straightforward and I built mine in about 3 days, fully primed internally.