planning the subframe

I don't have a lot exciting to share just now.  Now that the engine is placed I am designing some structure.

The structure must:
Hold the engine
Hold the suspension
Hold the rack
Be rigid for each of those things
Attach to the frame and the undercarriage
Dodge the sump
Dodge the exhaust
Be manufacturable by someone one with just cutting disks, drills, mig machine, and possibly a tubing bender
Allow servicability of reasonable items (no good if I have to remove the engine to change the oil filter etc.)
be cheap to make

I have a safety net in all this.  The kugel parts for this part of the job run about $3k All together.  I expect I should do this for ~600-1000 in material.  At that rate I can do it all a second time, and still have some real money left over.

I have some ideas from looking at as many other focus's on the web as I can find.  I will keep you all posted as I start to zero in on a plan.