It's time to replace my front left (driver side) ball joint/control arm on my '94 850 Turbo wagon.<p>How hard is this to do for a moderately mechanically inclined do-it-yourselfer? I've got basically all the standard issue tools - sockets, air hammer driver (if needed), jack stands, etc. The one thing I don't currently have is a repair manual. <p>Is it pretty straight forward, or should I just have a mechanic do it?<p>Also, what's a cost guestimate of having a mechanic do it? Looks like the part itself is @ $75.00. <p>Thanks for any advice. Also, anything else I should be replacing or checking while I'm in there?