I'm not big volume shooter, but I have yet to break a part. 1911s are not hothouse flowers, contrary to what is stated in some circles.
A lot will depend on your mechanical ability and the limitations of your knowledge. Using due care will keep part launches to a minimum. If your still not comfortable, field strip in a box or bag so things stay in the area. For day to day use, you really shouldn't need much more than Recoil & possibly Firing pin springs. Wolff sells them in sets.
Now, if your a high volume competitor, that will change things a bit.