Si A/C mounting brackets needed to swap into EX

I am having a B16A2 swapped into my 2k civic ex and they ran into a problem. They said they have to order the A/C compressor, lines, and freon in order for me to have A/C. It's suppose to cost $292. Is this neccessary?

i went to http://hybrid.honda-perf.org/tech/6gtech.html, this is what they said as far as A/C and what is needed for this swap:
10. Del Sol VTEC/99+ US Civic Si A/C mounting bracket
- to match your AC compressor make. ie. Nippondenzo (only if you want AC)

does that make sense? is there not an easier way to retain the A/C than spending the $292 for the compressor, lines, and freon out of the Si???

he said that the Si compressor is different than the EX compressor (one is denso and one is sandenz) they said that new lines were needed cause they have different connections......i asked them if the AC bracket of the SI would do the job and they said they need: Si compressor(since its different kind than the EX), new lines (for new compressor since the connections for the lines are different), and freon. They said they thought about just using the bracket but they knew that wouldnt work...........i asked him why honda only 2 yrs. ago decided to put a totally different compressor and lines for AC in the Si...and he said he didnt know only that it is a totally different engine than the EX.