It will now take 10 days of crane rental to assemble your house. They will get you one way or another.

whereas they just do the same thing (as in: hire from across the border and put an immigrant guy into the vehicle as its operator, working for as low wages as possible) and rip you off quoting the "Swiss quality".

Yes they will get you one way or the other. However, challenging prices did not yet kill anyone and the OP is correct to do his own due diligence if that saves him 5-7k costs.

Actually in this case it is a German company. To be honest: they seem even worse as they think "let's rip off these rich Swiss people".

BTW: The saving is over 10K and not only 5-7K

No, they won't