I think I have done a good job of getting the eric johnson violin tone at home using the following.
Marshall JCM-25/50 (basically a 89 jubilee)
On the clean channel bass 10, mid 6, treble 4, Pres 5, input gain 5 volume to suit.
I then use a strat with an eric johnson bridge pickup and the tone control wired to the bridge set at 5.
Pedals go wah, fuzz, octavio, screamer, tube driver, deja vibe, Hardwire Tremolo/Rotary.
On top of the the amp I have my tuner and a zvex box of the rock. Gain at 2 o'clock tone at 9o'clock volume at 10/11 o'clock (box of rock does not have numbers for the pots) boost off.
Reverb and delay in the loop.
For Eric Johnson lead I have Tube driver (gain and vol noon, EQ all off) on, box of rock on, delay and reverb on and add wah to suit.
All run through a 1x12 cab with an EVM 12-L
The box of rock really helps get a nice compressed over drive and is a great alternative to vranking your amp.
I have tried the same setup with a hot rod deluxe minus the reverb pedal, not as good as the marshall but still good.