The S&W .41 Mag's - were probably model 57 or 58's ....so yes, they are N frames / and they would feel the same as the model 27's, 28's in .357 mag / or the model 29's in .44 mag....( fit and feel / not in recoil).
Colt, Ruger, etc in terms of single actions --- are similar in size - sort of - to the Freedom Arms model 97's ..../ but the model 97's are a little heavier I think.
Freedom Arms web site ....has a spec page...at the bottom of the front page - so you can look at overall length / weight, etc ......but for an upcharge, they'll also do custom barrel lengths.
http://www.freedomarms.com/
I don't see a downside to a 5 shot model 83 / now there is no firing pin block, so if you carry it, you have to carry it with 4, not 5 - on horseback or whatever you're doing. But my model 83, 4 3/4" octagonal barrel...is right at 55 oz ....so its not something you're going to want to carry around a lot ...??? If I'm just bulls eye shooting at my local range...I load all 5 and keep it on the bench at half cock until I'm ready to shoot it.
There is no question that a Ruger, Colt, etc will be cheaper than a Freedom Arms, unless you find a really good deal on a used one. My Freedom Arms was my birthday present to myself when I turned 61, and I understand its a special gun ...but as a special present to yourself, its one of those guns that fills a niche / I have no intention of carrying it ! My wife thought it was stupid ....but then she doesn't like most of the guns in my collection. In actuality, all she cared was, will I enjoy it - and yes, I do ....so she was fine with it. She knows I love it / and I shoot it quite a bit .../ or at least a box a week most weeks.
.......I did let 2 guys, in an adjacent lane to me on Monday nite, at my range put a couple rounds thru my Freedom Arms ...they were talking about liking one, hadn't seen one.....so I was just giving them a little appreciation for what they are...how they feel. If someone shows some interest...I'll let them shoot a couple of rounds thru it - or one of my S&W's ...or one of my 1911's..../ especially if I've seen them around the range a little and know they're not idiots.
In my opinion, no one makes an equivalent to a model 83 Freedom Arms. Ruger, Colt, etc don't make bad guns....but equivalent ..is a big stretch....