A lot of the Lemon Larry crosses by Elite might be close to what you're looking for as well. Great breeding, very highly regarded breeder by forum members.
Something like this might fit what you're looking for and I'd wager it has much greater potency than Lemon Diesel with as good or better lemon/fuel taste (it's in stock):
4A. Lemon Larry Og Kush (genetic make-up Og Kush The Larry clone x Sour Larry Og kush male), This is a 100% Og Kush clone(The Larry) X ( Larry og kush x Sour Diesel IBL male)..This cross is a 75% Larry Og kush/25% Sour Diesel ibl That has a amazing lemon drop candy/og kush/fuel flavor, Amazing Potency With above average yields of lemon og funk! FINDING MANY PURPLE PHENOS~Sativa indica mix, flower time is 9 weeks
On Attitude seed bank... they say that Barney's Farm LSD got it's name for it's trippy effects.... Not because it stands for lemon sour diesel. The genetics of LSD, according to the attitude seed bank, are Skunk #1 x Mazar. I'm thinking about ordering some of that too.. great combination of high thc and cbd.