those are good parts but in my opinion, you can save quite a bit of money still but still have good performance. This is my setup:
Danger Den D4 pump $68.99 (voyeurmods.com)
'77 Boneville heater core $17.99 (autozone) or for single fan use 86 Chevette hc
2x 120mm Panaflo 86cfm 35dba $6.00 each (or Sanyo Denki 102cfm 39dba $5 each)
Swiftech MCW6002-P $40
bought a Swiftech MCW20-P but decided not to use it b/c it added more heat to what my prescott already produce
Clearflex 60 tubing 10' $6.50 at McMaster
home made PVC reservoir $6.00 or T fitting for $1.50 at home depot
8 worm clamps from autozone $4.00
1 part antifreeze (which I already have) to 9 parts distilled water for coolant
The heater core is really simple to mod. If you don't care about being fancy, all you need is a hack saw and cut the tubes when they start bending.
You will need to get a shroud for your hc. Either make your own if you are handy and save more bucks, have someone who are good at it make one for you or buy one.