Matti,
Nice project, congratulations on all your work to date.
I'm on your side and prefer single board designs wherever possible minimising wires excessive wiring around the place
Just my 2c, and I'm no designer - but I collect amplifiers, especially QRO HF mobile's.
I work with a company who design and manufacture continuous duty RF amplifiers and transmitters for the radio broadcast industry.
We currently use these Murata SMPS which meet all EU directives: http://www.murata-ps.com/cgi-bin/cd4pow ... talog/1001
You want to also look at Delta, similar quality at half the cost!
As an even cheaper alternative you may wish to have a word with Christi, a Rumainian SMPS designer based in China he can configure one of his standard models to fit. his 2kW unit is somewhat bare but at $177.00 USD is on the money don't you think:
Click on the image top right: http://connexelectronic.com/product_inf ... cts_id/120 He can fit it in a case just like the Murata's.
David G4ZOW