Clockwork Steed

In the monster manual IV there is a clockwork steed, I'm hoping to either buy one or later make one could you just check it over to make sure your ok with it. I think it fits nicly with the world and indeed with the group. It would mean I don't slow the group down during overland travel.

Thanks

Details:-

Clockwork Stallion CR 3
Always N Large construct
Init –1; Senses darkvision 60 ft., low-light vision; Listen +0,
Spot +0
Languages —
AC 15, touch 8, flat-footed 15
(–1 size, –1 Dex, +7 natural)
hp 63 (6 HD)
Immune construct immunities
Fort +2, Ref +1, Will +2
Speed 50 ft. (10 squares)
Melee 2 hooves +8 each (1d6+5)
Space 10 ft.; Reach 5 ft.
Base Atk +4; Grp +13
Abilities Str 20, Dex 8, Con —, Int —, Wis 10, Cha 1
SQ construct traits, rider response, upgrades
Feats —
Skills Jump +13, Listen +0, Spot +0
Advancement —
Rider Response (Ex) A clockwork steed is built to respond to
physical commands given to it by a rider holding its reins
or guiding it with the knees. A riderless clockwork steed
immediately stops and stands motionless, regardless of
threats to itself, until mounted by a rider. A clockwork steed
also stops and stands still if its rider becomes unconscious,
stunned, paralyzed, dead, or otherwise unable to function.
A clockwork steed cannot be taught tricks like a real
horse or pony. A rider can direct it to move and attack
foes, just like a war-trained mount, but cannot spur it to
greater speed.
Upgrades (Ex) The creator of a clockwork steed can imbue
it with more abilities at greater expense.


CL 4th; Craft Construct, animate objects, mount; Price
2,150 gp; Cost 1,150 gp + 80 XP. Upgrades increase the base
cost as described below.

Should be ok.
I will give it a good read

I've looked everything over and i see no reason why you can't buy or indeed craft one for yourself.