Used ~18-23ft rig/parts boat suggestions?- ~25-28ft mast w/ ~200-260 sq ft sail

I picked up a cold molded 21ft sm cabin 1600-1800lbs swing keel unknown monohull with a 24ft alu mast, 3x4" oval section, overall light-duty, single spreader, single side stays- that could use significantly more sail area

--I'm fixing up on the cheap. I could optimize with rig/mast I've got but the mast needs a sleeve & for around the price of a new genoa I could likely find a complete used retired racing rig, parts boat

ANY suggestions on what specific boats/rigs I could or should look out for in terms of "decent or better performance wise" monohulls or "somewhat heavy/sturdy" yet, ideally, non-rotating & potentially reefable... beach catamarans, in this size range?

roller furling boom or boomless might be a bonus due to how the boat will be used, hence thinking of looking into more of the beach cats.

Current -------------- Want
mast height 24ft ---- ~25-28ft
sail area 165 sq ft --- ~200-250 sq ft
J 7.5 ft ----------- could go either way about short bowsprit /assym setup or closer to "stock"
E 8ft ------------- more boom length would be ok/good

I'm thinking something like catalina 22, cal 20, Holder 20, Prindle or Nacra 18, but haven't dug too deeply (at all) yet- Will of course reinforce as needed, and do my own research on the cross-section.
ANY suggestions or input greatly appreciated

 

J24 comes to mind, a little on the extreme end of what you want, but plenty available. Might need to retrofit reefing points, many racing sails don't have them. Angled spreaders, might be a problem.
Sail area: mainsail 137sqft or 151sqft (racing), 100% jib 125sqft.
P - 28ft
J- 9.5ft
E- 9.8ft
Mast section, 4.90"x3"x0.090", 1.6lbs/ft, Ixx = 3.5", Iyy = 1.4"

 

Yeah, a J24 or Moore 24 rig would be about maximum. Right now you are effectively asking for a Capri 22 or a Catalina 22 rig if you want it cheap.
Here are all the main class measurements.
SailboatData.com - CAPRI 22 (CATALINA) Sailboat https://sailboatdata.com/sailboat/capri-22-catalina
SailboatData.com - CATALINA 22 Sailboat https://sailboatdata.com/sailboat/catalina-22
SailboatData.com - J/24 Sailboat https://sailboatdata.com/sailboat/j24
SailboatData.com - MOORE 24 Sailboat https://sailboatdata.com/sailboat/moore-24

 

Hello I-V,
I proposed to something like this a while back with my Southwind 21, concerting it to a Catalina 22 rig, and the conclusion was that the 'juice' was not worth the 'squeeze'. Since I had a rig and ill-fitting sail, I got the sail re-cut and am content with the new status quo.

Re-rigging a small sailboat (Luger Southwind 21 to Catalina 22) https://www.boatdesign.net/threads/re-rigging-a-small-sailboat-luger-southwind-21-to-catalina-22.66670/



Could you post pictures of the unknown mystery 21 hull? Specs sound like mine too, 1800# and 24 foot stick, single spreader, no backstay...Cold molded sounds interesting too.

 

I will get some better photos asap. There's a j/24 for $ 1000 (not great sails wise) I guess I should go look at , but I think that may be much too big . Its more like a dinghy mast rig weight/etc wise now