I need retirement cabin 4000 km from where l'm currently living. I thought buying a cabin kit and hire someone to build it. I changed my mind and l bought this fully finished two bedroom modular cabin kit with one full bath, kitchen cabinet, closets and standard electrical and plumbing fixtures
http://www.spiritelements.com/ProductDetail.aspx?c=1371&p=2519&clk=relprodlnk
So l'm going for the peace of mind but I wonder if it is possible to sit this type of building on a slab system to have a radiant floor. The joists are 2 x 8 and I was thinking that the carpenter would have enough room to couple the plumbing and the electric between the slab and the floor while sitting the building on the slab.
I wouldn't worry about the slab - put the radiant against the bottom of the wood floor- there are pressed aluminum plates to fasten it to the underside - then I think you could insulate under the radiant setup afterward.
There are also other ways to go about it but this seems easiest.