REV-N-NATOR vs MSD Street Fire CDI

Which is the best bang for the buck? I did a on Google and here search and am still reading the thread on Moparts about it.. this is for power gains aside, bang for buck reliability..

I just rewired my 71 Demon's engine harness that was previously setup with factory electronic ignition and am thinking the Wells box I have may not keep up with the new motor - a true 10.5:1 static 450ish hp 383

$50 difference, and I'd have to wire in the MSD - I have a Blaster 2 coil, 4 prong ballast, and a brand new Proform distributor

REV - pro's
Plug and play
Digital
Rev limiter

Con's
$209.00 plus shipping

MSD - pro's
Digital
Rev limiter
$152.00 free shipping

Con's
Has to be wired in over the wiring I already did..