You might be able to move the MAF replace the bit between 1 and 2, though I have a feeling that the maf is 70mm outside diameter and the tube between 1 & 2 is ~80mm
If you had some hard pipe (stainless, etc) you could drill a hole the correct size for the temp sensor and fit with silicone sealant. I dont think the order is important.
The flexi tube between the throttle body and 1 is another weak point, you could predict the inevitable and replace this with silicone tubing, though this has the added complication of the crank case breather tubes too! There are metal adaptors that bolt onto silicone tubing to join smaller tubes to it.
There are plenty of threads about intake mods on the site, with some useful links and ideas.