About your goto order for the galleys, I don't agree.
I would deliver the keshiks in 4 moves, then let the mobile buggers go for themselves to barcelona. It's quicker than the naval trip.
There are 3 Axmen in the Navy. Why are those in the trip if we don't need them? As they are here, I believe it's better if we utilize them. Izzi might have some spearmen to attack our riders. I believe it's better to cover them from some axmen. If we lost this battle, it's gonna take a long to build another troop, then send them for barcelona. I don't think we can risk that. If they reach barcelona, they HAVE TO TAKE IT!!!
I would deliver axes (or swords if you can build a few, the iron is in our borders and should be mined asap!) right next to bacelona, and that's 1 NW of the stone.
Well The troop has been already sent. And I hope an army of 11 Keshiks with 3 Axmen will be successful even if Izzi got 1 or 2 Longbowmen. The only thing it's missing is that after successful invasion, we will need some archers there to cover some later attacks at barcelona. I believe it's better to at least send 2 archers there. We have 1 extra archer here that was trained for the bridge to china. Well, we can train other later for the bridge. But at present, I believe it's better to send this archer with another 1 to Barcelona. We are going to get a galley just after I click "Enter". So that's not a problem if you agree.
I will obviously mine Iron of Beshbalik. But there is one thing important to understand. Even swordsmen won't be able to break the defense of a pile of Longbowmen. I believe, in the time we make a bridge to Alex, train troops, and send them for attack, Alex will have most of his Archer upgraded, or may have built some. Well, I am not sure if Alex yet have Feudalism or not. But in the time, he will have. Tokugawa already have that, and he is a buddy of Alex. In order to get Alex (and all other cities after Barcelona), we gonna need many Catapults with some Swordsmen. I think we have already built enough Keshiks. These Keshiks need to be transported to the main continent, so that they can be utilized to save Barcelona & Chehalis (the only city remaining of our buddies). Well, I would recommend if we decide to take at least Toledo there. That's a pretty good site for producing Army within the main continent.
It's gonna take a 25 turns for the transports to be back to Old Sarai after this trip. What I recommend is that, if we keep building Galleys in Turfan and start building them in Old Sarai just after it finishes Barrack (or after an archer). This way we can quickly have 4 galleys, good enough for 6 Keshiks, an Axmen, and a Sperman stationed in Old Sarai.
If we really want to utilize these forces, this is the only way. Later, we can build 14 units, most of them Cats, and send them in 7 galleys to Alex.