Barry,
I used the Roll Safe made by Trapezium for several years up until last year when I changed my caravan to one which had an alko stabiliser. I reckoned it was an excellent stabiliser, far better than the Scott which I had previously used.
I don't know if you are aware or not but this piece of equipment falls foul of the EEC regulations regarding tow balls and brackets. Because the towball is part of the stabiliser and moves to and fro as you are driving it does not meet the requirement to be a specific minimum distance from the tow bracket. This supposed non compliance was one of the main reasons why the company stopped producing them. I must admit continuing to use mine until I changed my van but it was always in my mind that if stopped at a vehicle check point or involved in an accident I may have had problems.
Anyway if you still want to fit it I am happy to try and help with instructions, from what I can remember it was not too difficult. Explaining how to do it in writing might not be so easy!
There are four pieces to the stabiliser ( I'm assuming it was the detachable version) - 1)a bracket that fits to the towbar in place of the tow ball 2) the main stabiliser part which has the tow ball and slides over the previously mentioned bracket 3) the stabiliser arm, roughly L shaped and made out of round metal bar, approx 2/3 foot long 4) small L shaped bracket which clamps onto A frame plus bolts.
Fitting instructions to the best of my memory were:
fit bracket to car tow bracket in place of tow ball- held in place with two bolts, attach main stabiliser unit to bracket- just slips over the top, hitch van up ( sorry should have said this to be done on level road with van & car in straight line), place short end of stabiliser arm into bracket ( this has to be done with long end of bracket pointing straight up, then when fully pushed home turn it down towards the van,because of the way the end of the arm is shaped it then can not come out of the bracket). You are then ready to mark location of the small L shaped bracket. This is fitted very similar to the brackets which hold the spring type stabilisers. Try and keep the arm of the stabiliser as horizontal as possible and have it so as the end is approx 8 inches overhang on the small L bracket, you want it so that if you make a sharp turn to the opposite side from which the stabiliser is fitted to it will not come out of the L bracket housing. Once you have decided on the bracket's position clamp it in place.
Important - please ensure the arm is fully locked in place before driving and never tow without it, very unstable.
It is easier to do than explain. Any questions please ask. Somewhere I may still have the instructions, if I can find them I will let you know.
Robert