I dont know of any way to move it forward but what about adapting a longer handle to it? one that maybe bolts to the base of the shifter (two bolts)comes up a little then makes a gradual slope to the location that is comfortable to shift from the drivers seat.All this , if heating and bending could take some of the strength from the ****er so be carefull. You may lose the short throw of the shifter though.I am putting a 95 Camaro 6 spd in my big block Chevelle also and i saw in a magazine they took the original first generation camaro shifter and used it ,for that original look in their camaro project car. Maybe an older truck (70/72) 3 spd shifter may work? You wont know until you try.
I used a bell housing from weir hotrod products and the kit came with a hydraulic throw out bearing and master, decent price.
Best of luck,hope this helps.