I want to try wind foiling. I have older Neil Pryde RAF sails. - 1988 ( 4.2, 5.4 6.6) - and 7.0 Speed .... 1990 ? ( 195 cm boom - 5.15 mast ) a
My old mast base would only fit SDM , I expect.
(I have an old 2 piece Serfiac aluminum - from corrosion , it's now a 1 piece. )
I need a replacement mast and booms .

Who makes an inexpensive 2 piece mast ? Can modern booms fit on RDM and SDM ?

Is there such an item as 3 parts . one lower base and a short top and a longer top part - ie to make 4.3 metre and a 4.9 metre 2 piece mast ?
I'm in Toronto - driving to the east coast. 1600 kms away.
TIA

1. You need to use 4.2, 5.4, and 6.0.
2. For windfoil, you use 1.5 to 2 meters smaller sail than for windsurf.
3. Buy used mast, so under $200. 2 rad, Windance, Silent Sports....
4. Boom only needs an rdm shim, but your sails are better with standard mast.

I'm planning to use the 5.4 m for windfoil . but I still have a short board that I would use the 7.0 with

5.4 windfoil is for lighter wind than 7.0 windsurf, or very similar.