Best Phono Preamp for budget system

I've been doing similar research. You might look into the following:

Cambridge Audio 640P
Bellari VP-129
Grado PH-1
Lehmann Black Cube
Jolida JD-9A

I think your system is nicely matched. Don't pursue the holy grail, enjoy the music. If/when you choose to upgrade I agree the TT is the weakest link. YMMV

Upgrade your table; it is entry level. A better phono stage will offer little or no difference.

Sometimes you can find a Gram Slee entry model (I forget the number) on Agon for around $200.

I agree with the recommendations on the TT. I started with the MMF5 when I got back into vinyl 1 1/2 years ago, and have since upgraded it and gone through multiple phono pres. The biggest improvement by far came with the table upgrade.

I have the Lehman Black Cube SE now - and like it much better than the other outboard phono's I tried - including the Belari VP129.