TCAS FAN
Cheapest option is to join up from Stand 14, but this must stay south of the ILS GP antenna, still requiring a part backtrack. Taxiway cannot go further north without closing down a car park, bean counters would never agree to that!
I take it that you mean a diagonal taxiway from Stand 14 to the runway , joinging just south of the PAPI's but outside of the ILS GP critical area. That would be better rahter than a perpendicular to the runway taxiway as it would reduce backtracking.