It's not so bad if you are planning on taking it completely apart, but yes it can be frustrating at times. Word of advice: Go to ACE Hardware or the like and buy replacement hardware by the box. For around $25 you can replace pretty much every structural nut, bolt and washer on these things.
1 - As mentioned, have the seat spring bolted up before the transaxle goes back in.
2 - Have the rear main clutch spring cotter pin in place before the dash goes back on.
3 - Don't completely tighten any of the frame bolts until every last one is in place and finger tight (there is a spot up front where 3 pieces of steel with through-holes have to line up
4 - Have the the Hi-Lo shift linkage/lever bolted back in place before the transaxle goes back in.
These are just some random reassembly notes off the top of my head. I know these well because I failed to do each and every one, and it was a pain to do them after. One thing I was able to do, was push the tractor (no engine) over on its side. The larger rear wheel(s) helped keep it from flipping on over while I had a much better shot at the bottom side.
1 - As mentioned, have the seat spring bolted up before the transaxle goes back in.
2 - Have the rear main clutch spring cotter pin in place before the dash goes back on.
3 - Don't completely tighten any of the frame bolts until every last one is in place and finger tight (there is a spot up front where 3 pieces of steel with through-holes have to line up
4 - Have the the Hi-Lo shift linkage/lever bolted back in place before the transaxle goes back in.
These are just some random reassembly notes off the top of my head. I know these well because I failed to do each and every one, and it was a pain to do them after. One thing I was able to do, was push the tractor (no engine) over on its side. The larger rear wheel(s) helped keep it from flipping on over while I had a much better shot at the bottom side.