tonearm + cartridge for custom lenco 75


Hey Analog lovers...
need your advise for nice tonearm and cartridge .
I bought a Lenco 75 (PTP4) + heavy plinth ,
which design to have 2 arms 9" and 12".

as understand ,good 12" long tonearms usually better then 9" arms in same price range .
especially for the Lenco 75.

so need your advise for a nice 12" tonearm and nice MC cartridge .
unless you think there's some nice 9" who could do the work.
my budget is 1200$ max for them both.
lower is better , would prefer to spend 800$ if the difference is not meaningful

12" options:

SAEC 308L
JELCO 750L (many says it good tonearm but it isn't true hi end arm).

9" :
Fidelity research 24
Saec 308N
SAEC 317

cartridge :
Denon 103R, AT 33 or OC9

Speakers:
Jbl L300
Amplifier:
SET 845 monoblocks
Pone stage: customize based on Tamura TKS 83 transformess
avico
Try a unipivot Clearaudio arm, if you can. I think the price is within your range (or starts within the range).
They are simple, well made and sound OK on the Lenco.
Otherwise try a used SME 3012 (or 3009).
Finally, I think Pro-ject sells arms separately. If so, consider at the carbon 12" model.
Mate the arm to the cartridge. The Lenco will do the rest. Just make sure that your chosen tonearm can be mounted on your chosen Lenco.
I am in the same boat and while I'm saving up for the 12" Schick tonearm, my near term plan is to use a just acquired SME 3012, Series 2 tonearm and a Denon DL-103 mounted in a wood body. Total came to ~$1300.