Hi helpwithmy victa.Just a little correction I know it doesn't change the value of it.It isn't the 3rd model it's the 2nd version of the model 5,but going form the engine number I'd say it's been changed.That number sounds more like a later model.As far as it's worth.Not a real lot.What I would do is take off the badge and sell it separately.You may get somewhere from $80 upwards for the badge.As they are not easy to come by.They did come on both the model 4 automatic and the model 4 standard,but still there are not a lot of them left.As for the value of the mower itself.It's hard to say,I've never paid more the $40 for one as there are plenty of them still left around.All you can do is try after all it's only worth as much as what somebody will pay for it.The market for them at the moment is down.I've seen heaps on eBay that just don't sell.All you can do is try,after all,all you need is 2 people to get into a bidding war and away it goes.