Race - tri bike conversion

I’ve a race w/ a carbon frame and geometry suited to the mountains. Want to do another triathlon (w/ a 90km cycle) - does anyone here have experience regarding the changes needed? I think I need a new seat post and saddle. Even on the Olympic distance I was getting quite numb. Aero bars are a must. Any ideas which ones? Areo wheels would be awesome, too. Any ideas?

this riddle be solved. ty

Were you using Tri bars on your Olympic distance?

You don’t need a new saddle and seat post but, your position of them needs to change. Clip-on tri-bars are the cheapest option. Aero wheels are $$$$.