Yes, SSQA was an option in 2018, may still be. For sure get SSQA !
Also consider the B2601 loader + backhoe, NO MMM. Check the price difference. There are several advantages to going to a 2601.
Size matters. Can you mow using ANY rider ? An acre isn't that bad to mow with a rider. I can't see cutting grass with a BX23S isn't a fast operation, though others will know. You'll have to remover BH and LDR to properly cut the grass.
Also price in a large concrete pad to do the implement changes ! When designing house garage,insist on an 8' high door (10 is better). If you get a 7' door, you'll HAVE to lower the ROPS to get in, EVERY time. It just squeaks under an 8' door.