Double spreader, swept vs straight?

[rpack]

Good Morning All,
I'm a new member of this forum, new to sailing, new to rigging boats. I have been an aircraft rigger for many years and currently teach apprentices how to take care of industrial equipment. I have a Lancer 27 that I just bought a new mast for after an accident raising the old one. The mast came off a Jackett 27 and is keel stepped, double spreader rig. My old mast was a Kenyon single swept spreader. I see my choices as building a keel step and deck partners and keel stepping the new mast, or shortening and deck stepping it. Either way I have to reconcile the new spreader and shroud configuration to my boat. Would I be better off to retain the straight spreaders and move my chainplates or install swept spreaders on the new mast and leave the chainplates where they are? Any advice you have would be greatly appreciated
Thanks

Rich