Powerflex Upper toque arm bush is really easy to replace, I did mine in about 30 minutes, all you need is an 18mm socket i think (may be wrong but think it's 18).
Powerflex Lower engine mount inserts should be a 30 minute job, I gave it a shot but could not for the life of me get the main bolt out, need to get a breaker bar for it.
Can do them both at home no real equipment needed, just a jack and axel stands to get he front up enough to get under for the lower one.
Edit:
Guide for lower engine mount insert
Guide for upper torque arm bush