He's going to sell the 362 and get the 461 or 462 not have both.I agree with some of the other posters 90cc will be the way to go. There is a noticeable difference between 60 and 70 but not enough to justify having both in my opinion. Since you dont like husqvarna a 661 should do the trick or look in the for sale section on here there are sometimes very good deals. If you wanted to come to the dark side a 390xp is a fine implement of deforestation lol.
I don't think his workload warrants a 661 personally. But I would agree, if he was planning on keeping the 362, a 661 would be a better addition to the stable.