I've studied electronics at TAFE, and in my younger years spent 6 years working as an electronics bench technician, mainly with Data Communications and Networking equipment.
I have to say I agree, soldering these sorts of logic boards is not easy, and usually requires at least a couple of years experience (full time). That doesn't just mean soldering anything (anyone can join a couple of pieces of wire together) you need experience with advanced computer type logic boards.
Most of these boards are multi layered (maybe 4 or 6 layers) not just double sided, and are full of very sensitive components. One wrong move and you're stuffed. It is surprising easy to write off a multi layered logic board, neither the board or components can take to much heat.
Having said that if you're exceptionally good with a soldering iron and really know what you're doing it can be done.
I don't know where you live, but it's something I (and probably others on here) would be comfortable doing.