Buying land then purchasing modular home

[Ashley Bee]

Hi everyone. First time poster here. My mil is in a tricky situation with downsizing and being able to afford a small home in an area close to family. We are not having luck finding a home in her price range. I was looking at property in the area. It ranges from $30,000- 50,000. We were looking to finance the land and have her use her money to purchase a modular home on the property. I have never done this before. How hard is it to do something like this? She has 100,000 cash. With us purchasing the land for her is this amount something we can work with for a small modular home. Everything done. Shipping, foundation, set up, permits ect. Thanks in advance!