Our 20 year old toilet setup is getting old, a few drips here and there,
were thinking of replacing the entire setup with a another standard ceramic one (nothing fancy or electrical)
is DIY as simple as it looks?
one of the concerns is whether the hole positon into the ground will match with new set etc. etc.
If you know what you're doing, have all the tools necessary and brave enough to give it a go.
Else, Bunnings will install one for $275 including all fixture and fittings, disposal of old one and one-year warranty on the work.
Peace of mind vs weekend project. Your call.