jdm_sai

Here's what i got. 92 civic hatch with complete front and rear gsr brakes swap.
Here's the parts that i got and want to install. 4040 integra brake proportional valve (out of a 95 integra ls NO ABS) and a ABS gsr 1" master brake cylinder.
Since i dont want to double flare the MC side of the brake lines, can't i just get a ABS brake line off the gsr?
I am assuming the ABS proportianal valve side has the same size fittings as the 4040/civic proportional valves and that only the fittings by
the master brake cylinder is different.
Any help would be nice. Could even call me lazy and just do the double flare.