Tonearm paralysis by analysis

So, I'm shopping for a tonearm to match with my MSL eminent ex (10 compliance, 9.5g).

I've been using with a Kuzma stabi s unipivot, which technically is too low mass for the cart. Does sound good though.

I'm pretty new to tonearm shopping and I've been reading, and reading, and reading and I feel like I'll never make a decision so I thought it would be a good time to ask for people's thoughts.

Budget maxes at $5000csn (3500usd) and I like buying used as I'm a deal hunter.

Obviously, I would prefer to keep thousands in my pocket for other fun stuff, so a $5000 arm really has to be worth moving from a $3000 one, for example.

My cartridge I think would like a big heavy arm, and having had a unipivot for 8 years or so I hanker for a big, solid sexy arm.

I'm really looking for any and all thoughts, anything to make me feel good about making a decision...I just don't know enough about tonearm design to be able to really analyze and imagine what it will sound like so need to rely on reviews and advice.

Main contenders:

EMT 997 ($3500cdn) 1 year old

Ikeda 407 $4200 cdn pretty new and light use 

Moerch dp8 $3500 - 1 year old

Older Reed - $3500

Fr64s from Japan, probably around $2500cdn. My concern here is I don't know if I will need to rebuild, or if I'm qualified to determine that. That said, they really appeal to me

Graham Phantom ii supreme $5500cdn