Need used mast base for an old ('94?) Mistral

[dmcclin]

Im pretty much a beginner, recently bought an almost complete, very used rig -- everything but the mast base. How do I find one that fits? Are they all the same? The board is about a 94 Mistral, but I have no idea what model. Its about 9 long, no centerboard. Any help most appreciated!
(By the way, I paid $350 for board, mast, 5 sails, boom, 2 harnesses, + some extra random stuff. All looks very usable -- is that a decent deal?)
Clueless Dave...

[windsurfcenter]

Dave - The model name is on the deck of the board at the bow. We still have some base parts for the older mistrals - Long Beach Windsurf Center (562)433-1014