Take a picture. But all you need to hang a door is 1xs for your jamb, a ripped 1x to cover gaps around the edge of the doors openings then either a solid core slab door you cut down to fit, or build your own. If you go build your own route, I can walk you through that but you'd need a few tools (circular saw, either a saw guide, or a long straight edge and clamps, 1 inch trim screws, wood glue and material)

Look for used appliances in your area. Maybe even Facebook as there's some guys that do this in their spare time. But also some manufacturers use parts that aren't proprietary to their products. So get your blow up, it's number 43, separate your units, and gently turn over your washer and locate the part I mentioned. There's a small chance a Frigidaire has the part. But because it's a part long discontinued, it may be worth buying a used since you'll be spending 50% of a used on an old part that's only really a $40 part when it's a newer model washer. Hopefully that helps some.

Edit I meant to say look for used appliance repair guys because they may have your part you can scrap from them

Likely the drain pump. 3 screws and a wiring harness. What type of washer do you have?