What DIY skimmer design is best?

[Gujustud]

I've been doing tons and tons of reading on skimmers for the past few months now. Its coming down to time to make the skimmer, and I'm still tossing over a beckett or spray injection (mazzi).

I was heavly going to just make a beckett, but from reading, I think I'd rather go with a mazzi since they are seemed to last forever, and pump size isin't highly important. (I'll be using a Mag5).

Few questions:

1) Where can I get a injector from?

2) The skimmer will be for my 38, and possibly for a 55/65 when I upgrade. Is the design I have shown below overkill? Of course the design is not 100% finished yet. As you can tell its the beckett design right now.