I wish. Best I can say is check the option for "damage parts by margin of failure" and "damage only lowest quality parts". And maybe set the margin of failure to 5 or 6 instead of 3.
As for parts when off-contract, if your company is a bunch of no-name scrubs with no connections, it makes sense that nobody will sell to you. Once you get to dragoons rating C or so, you'll be fine.