Hi Jim and welcome to the forum from the British Isles. Another solution to the saddle height would be to adopt and wear that 70's fashion icon - the platform boots??
Just wear the front tire off and switch to a 140 front. And stay with the 240/50 instead of the 240/55 she will sit lower. I'm 5'10" 150ish 31 inseam depending on who makes them. And she sits fine. Or as mitzy said you can by a Corbin rock it will lower you by decreasing the thickness of you wallet
Welcome Jim from another Brit . Grumpys just trying to clear his wardrobe, his footwear are all throwbacks from when he was Freddie Mercurys stunt double !