big job and you may have structural issues if you go bigger that you have to cut through???
we just switched our Sub 6 gallon LP only out for a LP /Electric unit.
Easy Peasy. there was bracing off the sides of my old tank so not sure about a 10 gallon unit.
TV 2018 Ford F250, hauling a 2018 KZ 331 TH 12 Sportster 5th wheel, packing a 2015 CF MOTO 800 U-Force SXS