I finally got the parents sorted with a motorised install yesterday with a Technomate TM-2600 M3 motor and Triax zone 2 Sky dish w/ Sky quad LNB hooked up to their old XP1000.
I've noticed that compared to my TM-2300 M3 it's quite a bit quieter - is that to be expected with the steel motor as I'd expected the steel motor to be noisier for some reason than the nylon one?
Also speed wise I don't know if it's the fact the XP1000 is a slower box but the 2600 seems to move to satellites quicker than my LX3 with the 2300 - at least on the XP1000 the channel is up just before the countdown whereas on the LX3 with the 2300 it usually takes a second or two longer than the on screen countdown.
Modification wise it just needed a few bolts through the mounting plate of the dish to lock it onto the arm of the motor (it was the 50mm version so too big for the standard U bolts) and it seems very sturdy but we'll see how much over the winter!
Quite enjoyed doing it from scratch anyway and it's working well across the entire ARC with the exact GPS co-ordinates entered into the tuner config.
I did have to upgrade Vix from the older 3.2.x version to the latest as for some reason it was only letting me pick from 13.0e or 19.2e in the satellite finder but a fresh flash sorted that out.