Well, I am not aware of any lightweight FFP LPVOs on a budget. The least expensive FFP LPVO I recommend is Burris XTR II 1-8x24 and it is not a lightweight.
The lightest is probably March 1-8x24 Shorty, but it is over $2k.
I'd probably take a close look at Sig Tango4 1-4x24. They have an FFP model with 0.5MOA clicks for around $500, I think,
Tango6 1-6x24 is also available with MOA clicks, but it a bit over $1k. Nice scope though.
ILya