Contact Steve Seals
He was a rigger on the cal's when they were in production. I have ordered a new boom from him for a friends Cal 29. He may have the extrusion for a new mast as well. If not, almost any spar shop can make you a new one. You'll most likely have to change the mast step plate to accomadate the new one but that's a minor job. I am about to replace my boom on my Cal 229 and plan to order one through US Spars. Sand Sailor has never price any rigging for a 29'boat or he'd know that just a new boom runs about $700. If you have someone do the install of the new mast and tune the rig my guess is you'll have around $3,000 to $4,000 in the job. I just finished replacing all the standing rigging on mine. I almost lost my mast (while supported with lines/halyards)durring a storm at the dock. But had it gone over the side, I would have ordered another one.(just as soon as I wiped the tears out of my eyes) Any way here's Steve Seals website....www.sealsspars.com Good luck and get that Cal fixed so you can keep on sailing.Cal 2-29#649Black Pearl