Everything is possible as long as you stay within the E2 guidance. For large investments somewhere around 50% or more of the total value of the company. For smaller investments, below $100K for example, the guidance goes up to 75% of the total value. Given a $25K investment and a total company value of $35K, you get pretty close to the 75%. Another aspect that is important is the type of business. Service oriented businesses often require much lower investments while manufacturing businesses often require large investments for machines.
Numbers also differ for existing and new businesses. For a new business your business plan only contains projections, so you might have a bit more room to present your case in a favorable light.