Thoughts on more fish?

[idisc]

I am looking to add my final stock to my tank fish wise... Should I go with 1 or 2 clowns?

Tank: 40 Breeder w/ 20L Sump
Skimmer: ASM Mini-G
Reactor: TLF Carbon
Wave Makers: 2x Jebao RW-4
Doser: Jebao DP-4 + Additive Container (Redsea A,B,C)
Fuge Area: Sand N Rock Rubble
Water Change Schedule: Maybe once a month

Parameters:
Calc: 430
Alk: 8.5
Mag: 1320
Phosphate: Ran out of Reagents ???
Nitrate: 0-5

Bio Load: 8 Fish, 39 Corals

Current Fish:
- Midas Blenny
- Royal Gramma
- Bi-Color Blenny
- Tail Spot Blenny
- 2x Banggai Cards
- Fire Fish
- Green Mandarin
- ( I want to at least 1 clown if not 2 ) to finish the fish list

Inverts:
- 5 Turbo Snails
- 15-20 Hermits
- 10-15 Nass Snails
- 5 Scarlet Hermits
- 1 Halloween Hermit
- 10 Various other snails
- 1 Skunk Cleaner Shrimp
- 1 Blood Fire Shrimp
- 1 Peppermint Shrimp
- 2 Emerald Crabs (1 in DT, 1 in Fuge)

Corals:

Softies:
- Sunny D Palys
- VDM Palys
- Estacy Palys
- Cat's Eye Zoa
- Orange Gorgonian
- Blueberry Gorgonian
- Rasta Zoas

LPS:
- Teal Trumpets
- Nuclear Trumpets
- Red/Green Trumpets
- 3 Different Frogspawns
- 2 Different Hammers
- 1 Rainbow Torch
- Duncan's

SPS:
- 3x Red Cap Monti
- Green Cap
- 2x Green Birdsnest
- Purple Poci
- 2x Starry Night Acro
- Red Planet Acro
- Montipora Spongode
- Rainbiw Millie
- Green Millie
- 3x Tenius
- Rainbow Turbinaria
- Blue Digitata
- Mystic Montipora

I am probably missing something, but the tank has a good stock in it.. Do you think adding 2 more clowns would put it over the edge?