Hi Cari,
I owned and bred several Polish bred (Bask lines) several years ago...Arabs are wonderful horses. I am currently horseless...living in suburbia and raising a few kids etc etc! I found that there are definitely different strains if you will of types...some are stockier and some are more lean and racey looking...as long as they are even tempered and have good big round hooves, you should do well in endurance. Some of the part breds like Quarabs (half QH and half Arab) are very sound and a bit bigger built...best of both worlds! Probably want one that has a flatter gait without much front end lift (english park show types) as you want energy going into covering ground. great hooves and a strong back (nice and level with strong rounded croup/hip) will keep the horse sound and able to go the last mile carrying a good amount of weight too. good luck!
Cindy in AZ (-;
I owned and bred several Polish bred (Bask lines) several years ago...Arabs are wonderful horses. I am currently horseless...living in suburbia and raising a few kids etc etc! I found that there are definitely different strains if you will of types...some are stockier and some are more lean and racey looking...as long as they are even tempered and have good big round hooves, you should do well in endurance. Some of the part breds like Quarabs (half QH and half Arab) are very sound and a bit bigger built...best of both worlds! Probably want one that has a flatter gait without much front end lift (english park show types) as you want energy going into covering ground. great hooves and a strong back (nice and level with strong rounded croup/hip) will keep the horse sound and able to go the last mile carrying a good amount of weight too. good luck!
Cindy in AZ (-;

I have a Bask bred gelding and he is a high energy horse but he never tires out even at 19yrs old. He is not hard to deal with at all and he lives his life wanting to please his people. His main fault is he is very sensitive to pain of any sort so would not cut it as an endurence horse. Heaven forbid he should scratch himself! He has amazing lung capacity and recovery time, it does give him a "tank" look along with his nice short back at only 14.2hh but don't let that fool you.
I also have a Egyptian bred stallion who has sired a couple endurance/extreme trail horses. He gave them super hard hooves, straight and strong legs, and a "Lets go!" attitude. Keep in mind that (IMO) it is easier to hold a horse back on the trail then always have to push them forward constantly. 