Need Plywood AC Window Units Frames Built

Chicago IL

Description

I've got several AC units (2 maybe 3, mix of 5k btu and 12k btu) which are too small in width for my large window frames, some of which are slightly crooked. Looking to have someone supply lumber and fabricate a wood frame to fit each unit. Basically do everything to hang the AC securely in place and keep the weather out-may need a wood block cut also to prop units back end up? I can caulk or weatherproof the rest.