I'm fairly open on budget. I would like to be able to aquascape it but not sure how much I will be able to do with live wet rock.
I will have a 40 gallon breeder with a 20 gallon sump to start with. After I get a bit established and I'm not TERRIBLE at this, then the 40 gallon will become the breeder, 20 will be a quarantine and I'll buy a bigger tank. Maybe something around the 130 range. Depends on how things roll.
40 breeder is a good size. Very popular. If you haven't already start looking at what sort of reef you are aiming for be it soft, lps, or sps. Or mixed. Then do a search on 40 breeders to get a visualization on scale. I would also consider fish. Often overlooked is fish and their typical area of reef coverage. Some are on outer reef, some shallow, some in open water, etc. This will help aquascape designs.
My experience and opinion is more rock, substrate, and avoidance of the negative aquascape. Especially for new displays. Lack of surface area for the biological filter is bad. Again, in my opinion.
Also a few here have builds using TBS or KP rock. In fact I think @d2mini has one recently that uses TBS rock. He is a very good photographer so you will see some details in size.
All the best to you.