I know building your first one is scary... But's only because you are under the assumption that these parts are extremely delicate and the process is difficult. Once you build your first one the fear will go and with enough builds under your belt you will realise that unless you literally break something or a item is faulty there is really nothing you can do to damage the parts and that putting it together is very simple.
I suggest looking at as many YouTube video's as possible till you feel confident enough to build one and then order parts.
I would go with the following if I had a $1400 budget.