Mini split line set question
I need to install a line set from an outdoor unit to indoor units (R410A refrigerant will be used). I found ready-to-install line sets sold online (3/8" and 5/8"). These line sets seem to come in lengths of 25' and 50' and there are already flared ends on them. They are also insulated. Example: https://www.younits.com/line-sets-refrigerant-line-c-106_117_284.html
The problem is that these are not optimal lengths for my application. They are also expensive. I wonder whether the following is acceptable: Use a refrigeration coil, cut in length, flare the ends, and then insulate with rubber, self-adhesive insulation. I think I can use regular refrigeration coils (ACR copper coils).
Coil example: http://www.lowes.com/pd_4182-58421-D+06050PSE_0__?productId=4742194
Insulation example: http://www.homedepot.com/p/Armaflex-3-8-in-x-3-8-in-Rubber-Pipe-Insulation-600-Lineal-Feet-Carton-APT03838/203357496
Is there anything about these ready line sets that justify the use of them vs preparing your own ? (except being faster to install)