I have several nice used masts and boom sets with all hardware. Masts $60; boom sets with all hardware $75 But it is pick-up only in Cazenovia, NY near Syracuse, NY as shipping would be $200 +. If you have a way to pick them up, I will be happy to sell you these items, I also have most other Sunfish parts and gear if you need any to finish your project, shipping via USPS or UPS.
Sunfish spars are considered oversized by USPS, FedEx and UPS and cost a fortune to ship so spars are pick-up only at my place in Cazenovia, NY.
You might do better by finding a dealer in your area who sells new spars or check out Sunfish Direct or APS.ltd as the big shippers may give them a better shipping rate. Love to sell you (both) some spars, but the shipping would be in the $300 range I am guessing based on the last time I checked. If you know of better shipping deals, let me know.