Yamaha DTXpress/DTXplorer/DTXtreme

i am new to dtxpress.  regarding set up: i think i am missing some of the 
tube parts for the frame.  i'm wondering if i can just go to home depot and 
buy some pvc tubing and use that.  anyone have any experience in this 
regard?  what can i use for the clamps that would connect the various tubes 
to each other?  any hints and tips on other set up items would be 
appreciated.  also, i can't seem to get the snare and hi-hat coordinated so 
that they feel like i had them on my real kit.