Alright, I'm a novice engine builder so go easy on me. I just built by first engine, a small block 400, Trick Flow heads, healthy cam, the works. She runs pretty well except one small problem: excessive crank case pressure causing oil leaks. I've gapped my compression rings with the intent to run boost relatively soon, so they're a bit excessive, I know. This, as I've learned, has the unfortunate consequence of building excessive crankcase pressure from the additional blow by. I tell you this information that you already know just so you know where I'm at.

Now, originally, when this engine was in stock-ish trim, it was running a factory-style PCV system. Even with that in place, after my rebuild, it blew out the front gasket in-between the intake manifold and block (I believe this is referred to as the China wall?). Before knowing what the actual cause was, I replaced that with some heavy duty RTV and it seemed to work. Few days later, the timing cover gasket goes. At this point I realized what the problem may be so I added 2 vents to the valve covers in addition to the PCV system in place to hopefully help evacuate additional crankcase pressure. Unfortunately, while the oil leaks are "better", oil still manages to squeeze past the new timing cover gasket at high rpms.

Now, to my actual question. I've been doing a lot of research and I believe a PCV system that doesn't rely on my intake manifold vacuum may be the solution. I went with as big of a cam that the rest of my components could support (naturally), so I'm assuming the vacuum pressure that the PCV system needs just isn't there, especially at high rpm when vacuum pressure is low and crankcase pressure is high. All of that being said, I've been looking for stand alone PCV systems and there really only seems to be like a pulley style pump, example below:

https://www.jegs.com/i/Moroso/710/22640K/10002/-1

While these systems probably work great, they're crazy expensive. My "never having dealt with this before" solution is to use an electric vacuum pump, typically intended for brake booster vacuum, but instead have it drawing vacuum off the valve cover/crankcase. Does that even sound possible? My main concern is that these style pumps clearly weren't meant to be drawing from as big of a volume as the entire crank case, but I'm interested in hearing other's feedback.

Most importantly though, I'm looking to learn. If you've read all of this, I greatly appreciate your time. I may be completely on the wrong track here which is why I'd love input from others. Or, if you simply have a cheaper/easier solution, I'd love to hear it. If you need any additional info or questions, I will do my best.