The only thing to make sure whatever one you purchase, is that the track rod ball joints on the ends on your car fit. Mine didn't fit, they were the original ones.
Don't dismantle everything. The way I did it, is too get the ignition lock to come on with the wheels straight ahead. Then undid the power steering arm to centre piece, at the ball joint, the arm was rusted tight onto mine. Then the inner track rod ends to it. Then undid the steering idler at the nut, so the whole middle piece came off with idler stillattached. To remove the steering idler, I just held the arm, and knocked the ball joint from it, by hitting the top of it with a hammer.
Putting the new one on, I started with fitting the power steering arm to the new middle piece first. This gave me a quick reference, when fitting everything else on. I fitted the steering idler onto the middle piece, leaving it lose to allow fitting back to the spindle on the side of the passenger side. Then fitted both the inner track rods onto it. Once everything was connected, everything was torqued up. Definately get it tracked.
Link to the one I bought.
https://www.ebay.co.uk/itm/174946948307