advice?

[Zoaelite]

I understand your choice to try and save as much money as possible but this hobby is pricey and there is no getting around it. If I were you I would save the time and effort of trying to build your own (Not saying you can't do it) but wait for a good deal to come up and buy a used one. The hours that you will spend ripping your hair out trying to follow those instructions are just not worth it...
Levi