AFO brace for foot drop Insightful Products Step-Smart... https://www.amazon.com/dp/B0758K7J4B?ref=ppx_pop_mob_ap_share

Walker large guy 6 foot 1 Hugo Mobility Portable Rollator Walker with Seat, Backrest and 8 Inch Wheels, Blue https://www.amazon.com/dp/B000GHTHTM/ref=cm_sw_r_apan_glt_fabc_WAP2XV3Z33QAKCC3H93M

From there its general goods.

Aspirin and benadryl to avoid muscle spasticity at night and mucus buildup

Gel ice pack leave unrefrigated on back of arm chair. Way to cool down without cold sensitive issues.

Everything else I know of has been posted or waiting to show up and try before recommending.

One piece of advice. Your breathing issue is very concerning, bring it to your doctors attention. I use a cpap machine at night so know its not uncommon for MS to need one.