HPA?

I want to get a few ideas on sine recommendations I got from a salesperson. In attempting to build a hps system and despite some research come to a few hurdles about sprayers and the pump.

The sprayer and pump I've chose are:

http://www.biocontrols.com/secure/shop/item.aspx?itemid=88

And

http://www.biocontrols.com/secure/shop/item.aspx?itemid=43

That

I asked the salesperson what I needed to use that combination in my build and he said:

"You will need an accumulator tank and hydro-controller to release the store
pressure of 100psi to the 8 jets. The pump builds the pressure
(auto-ON/OFF)"

The accumulator they have is $279 which is question one. Does anyone know of one that is less expensive?

Then I asked him to suggest a hydro controller and he suggested this:

http://www.biocontrols.com/secure/shop/item.aspx?itemid=152

Not possible, which leads to the last questions. Is there a cheaper way to achieve the HPA. I'm still researching but any advice will be appreciated.

Do not buy anything from biocontrols. Their stuff is not quality made. I bought their nozzles, 10 total. And almost all of them were faulty.

Get Netafim coolnet pro nozzles, they are the best.

You can get accumulator tanks way cheaper, just make sure they are the correct presure rating. If you can get away with smaller accumulator tanks look into RV and boat accumulator tanks.