VPI Turntable Upgrade

I currently own a VPI Scoutmaster with the following options:

- VPI Scoutmaster turntable
- VPI JMW-9 Signature tonearm
- VPI Periphery Ring + VPI Center Weight
- VPI SDS
- RSA F-117 Nighthawk MM/MC phono pre-amp
- Dynavector DV-20X Low MC cartridge

Would there be any benefit in upgrading to a VPI Classic 3 and still keeping the following options:

- VPI Periphery Ring + VPI Center Weight
- VPI SDS
- RSA F-117 Nighthawk MM/MC phono pre-amp
- Dynavector DV-20X Low MC cartridge

Or would I be better off keeping my VPI Scoutmaster turntable & options and upgrading to a Lyra Delos MC cartridge?