Most Voron folks will usually suggest building as close to stock as you can initially and going from there. LDO's kits modify the stock BOM quite a bit, which can make for a more challenging build. Buying from someone like West 3D. Formbot kits use to stick to the stock BOM fairly well too.

As for support, there's an active discord server and forum you can use to get help. They also have a print it forward program where you're matched with a Voron owner who will print your functional parts for the cost of material.