Advise on truck and engine purchase

[Magard]

Thanks for the info guys. I never really even thought of a pro star. I've been looking into them and found some that might work really well. It seems like they run a lot cheaper than other trucks is there a reason for this. I have found some 2009 Ryder trucks with 3-400k on them for $35,000. 450 isx 10spd nothing fancy just good working type trucks. Seems cheap others also similar money 500k aluminum wheels a little bigger sleeper. The 450 isx has a 1500lbs torque rating is it possible to get to 1800 lbs with computer program. Thought if I bought a derated one it might not have as many head gasket or turbo problems due to not working as hard.