Significantly Improved LTV after appraisal

Anyone had success with having a loan repriced based on the above? Really trying to understand. I am in the process of buying a new manufactured home to place on property that I own outright. I was approved with conditions. One being that my property needed to appraise at $50k. My loan amount is $150k at 9.76% for 25 years. I have a $5000 trade and already put $5000 cash down. Property appraisal came back today and it actually appraised for $84700. This reduced our LTV to 63%. What kind of leverage do I have with the lender, if any? We are at the tail end of this and I don’t want to do anything to delay, but I also want to ensure that I get a fair shake!