I finally spoke with Justin today at redline. Said there shipping every 2 weeks air pallets. Slinkys come regular an HD for front an rear is regular then HD 400 900 1100 plus for rear depending on set up an load. Darren said 700mm rear shock an 750mm front shocks . I believe that is rod length Justin said he would double check an clarify. HD is recmond for bumper etc. Specs 2 bats which an bumper to Darren who replied HD for front. Will keep updated. I'm going with kings most likely so when built I will list build part number an info still working on it. I explained to Justin about replying, calling an messaging an stuff being out of stock said he's booked an working on it.