The 23″ Konas were pretty big, haven’t looked into their 29ers but really got on with a 23″ demo bike I took out once. XXL Specialized are 23″ too, their XL are pretty big too though.
Riding a Scandal 29er with a 410mm Thomson seatpost here, 6’6″. Few spacers under the stem and a 40mm riser bar, but I’ve got on ok with it. To be honest, the front end is 20mm higher using 100mm Rebas than it was with the old rigids on anyway which raises it a bit.
I normally get shafted by short top tubes though, so I may be a bit more monkey proportioned.
Am only 6-3ft but have long legs.
Are you sure you’re not going to go the opposite direction and end up with too big a bike? If you have huge long legs, you must have a shorter torso, so shouldn’t be too hunched over.