New motor build questions

Well after about a 15 year break from the VW scene I've jumped back in with both feet. I'm currently building a 2007 for a notchback, basic specs are new wedgemated Scat crank, flywheel and 5.4" rods, Web 86b w/ Scat 1.4:1, 9.0:1 compression, non-welded 42x37.5 heads and 44 DCNF's. I've got 3 main questions that may open the box for more.

1. What are current options for piston rings? The last motor I built used a Childs & Albert z-gap second ring but the only thing I'm seeing for a 90.5 piston is TotalSeal. Should I run the TotalSeal second or is there another second ring that folks have had better results with?

2. What to do about wrist pin retainers? Referencing the same previous motor Spiro-Loks were used but I can't seem to find them for other than JE pistons, do I use teflon buttons, the Berg style double snap rings, or is there something newer and better?

3. The new case is full flowed with plans of running a Canton filter and an aux. cooler with fan. I figured 30mm oil pump is the standard but which pump. Again the old motor referenced above used a 30mm cast iron pump (Melling). Do I go with the same or use a plugged 30mm schadeck or pony up for a Berg "blue printed" pump.

Like I stated earlier, this will all be going in a '63 notch and backing it up with a 5 speed. The car won't be a daily driver but will be driven frequently with maybe 1 or 2 passes just to see what it can do. Thanks in advance for your thoughts and have a safe and happy holiday season.

Mike