Since you mentioned slow motion control i will assume your looking for a manual AZ mount. These two are manual push to, with slow mo knobs.
The TS AZ5 might be adequate:
http://www.teleskop-express.de/shop/...djustment.html
I have one and it carries weight well, will accept most standard 20mm shaft counterweights as well. A bit stiff when i got mine, some simple adjustments made it smooth. Also known as the SkyTee II i believe. Just buy the head unit, it will sit on any EQ5 type tripod. The Astroshop sells EQ5 tripods.
There is also the Losmandy AZ8:
http://www.losmandy.com/AZ8.html
The Mercedes Benz of AZ push to mounts, with great capacity but more expensive. Has etched setting circles and there is an encoder system available as well. Price is for head only, you will need a tripod for it.
Finally, the Orion UK, knock down Dob mount would certainly carry the 10" f4.7 tube, and weighs just 12kg.
http://www.orionoptics.co.uk/MOUNTS/dobsonianmount.html