Yeah, you need to let your sibs know what you need. You shouldn't bear all the burden alone. What about your brother (seems most people have a sib like that) helping out financially?
Welcome, Ohio. You've been around the block! If this old biddy can build a coop, green house, and tractors, I'm sure you can do it. But, you gotta have power tools to even the playing field between male brawn and female not so brawny! Chop saw is a must, followed by pneumatic nailer, skill saw, and a good drill. Jig saw if cutting anything funky or not straight.