Well pulled the trigger, purchased the holley mounts and the gear box mounts as well ,think all up 112 bucks. I like it, as definitely going a 6.4 so no cutting fire wall. I am in Australia and have to get it engineered so less items i cut and modify the easier and cheaper engineering is. I am changing to an 8, 3/4 diff anyway so would require tailshaft work regardless. Due to the cost of headers and shipping i may just have them custom made and copy the holley design or cut up set of tti. I like the holley pulls motor forward as more likely to get steering components etc to work as well.