No man, I don't think that your goals are unrealistic. I don't know why it should matter whether it is specifically 205 as long as it's mostly lean mass...is there some specific reason for this?
But, no, I don't thing the answer is always to "bulk and then cut back down". It's just for a lot of people that want a lot of mass that allows much quicker gains of mass. You can 'convert' just as you say and try to achive a steady change in body compostion. The positive results of this should be many, including changes in the way your body stores fat, and, quite frankly, for a person who puts on crap weight very easily it may be the smarter way to go because you may just turn that around and end up being a person who doesn't put on crap weight all that easily. It may be a slower process in the short term but a better longterm outcome.
IMO, one of the BIGGEST mistakes in the general bodybuilding world is everyone thinking that what applies to someone stepping onto a stage applies to them as well. I could assume you want more of a six pack, for istance. Well you can achieve that in time and you don't need to get down to single digits to do it. Given that, just how damn cut do you need to be when your more massive (not fat) than the next guy. He gets the underwear add, and you get more women
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