Hiwdy y'all. I have a 1996 Wellcraft Excell 21sx. My dad bought it new. It needs some love. Starting with seats. The B's lay flat helm seats are toast. I want to replace with pedestal cptns chairs. The decking feels solid. Anything special needed to be done mounting to the floor? Also, I have astioperorsis(so?) Ballin at 36. My back has broken vertabret from standing falls. Is a "shock absorbing)" pedstal worth it? Tia.