I'll throw in my chits here as at least one greenhouse is on my future list as well. Feel free to throw them back at me...
Current heating is propane. There is the possibility that you could change the heating over to a geothermal system which would completely eliminate your fuel cost. The only costs, as far as I know, would be initial purchase of equipment and the electricity to run the blowers. Heat itself would come from the ground. Another possibility might be solar water heating in conjunction with the geothermal OR converted into a radiant heating system. If you know others in yoru area with animals (horses, cows, etc) that have quantities of manure available for the taking biomass might be another option for methane fuel for heating. Radical, expensive initial thoughts but bear with me....
Someone correct me if I'm wrong, but I believe the '02 Farm Bill provides funding for "alternative energy" sources. I may be totally out of the ballpark but a figure of up to $500,000 per applicant was potentially available. All depends on your particular situation. Likewise, my state Farm Services Association would consider a loan of up to $175k for purchase price of an existing business. Something else you may want to look into. Now that I think of it, I may be confusing the Farm Bill and FSA figures but I do know that they exist in one program or another....
If you think that this may be "the one" look good and hard at it. If you have the cash to hire the accountant to look at the books and have the operation appraised then by all means do it. BUT, every day that the business is on the market is one more day that you run the risk of losing it to another buyer. Having said that, you CAN formulate some sort of offer and make it an honest to god
binding offer PENDING your examination of the business books and appraisal, etc. and offer to put down all of $100.00 in ernest money with a larger figure to be exchanged within X number of days if/when you find the books, appraisal acceptable. If everything looks good to you you can then go ahead with shopping for financing, etc. That way, you won't run the risk of potentially losing the business to another offer, you get to examine the business to determine if it's worth your effort, AND you don't rack up that additional "ding" on yoru credit report as was mentioned. Once you've got all THAT info you'll be able to determine whether your initial offer is in the right ballpark. If you find anything that doesn't sit well with you in the numbers you can use that as the deal breaker thereby getting you out of the contract OR use it to make a counter offer lower than your initial one. In any cas, I would HIGHLY recommend hiring a buyer's agent to protect your interests and legal rights in this or any real estate transaction. And once you're done with that, have an attorney handy to go over the fine print....
Each and every time you have your credit pulled by ANYONE it potentially drops your credit score by a few points. Rack up enough dings and you could be talking a drop in score significant enough that it would effect your financing application. That goes for ANY application for credit that requires a credit check so until and unless you decide which way you're going on this business venture you and your partner hold off on making any kind of financing applications until AFTER you either walk away from this or close on the deal where it is yours (and the bank's) lock, stock and barrel.
If no one has mentioned the Small Business Association (SBA) I'd also contact your local office for assistance with business plan development, etc...
Hope I scattered all of that appropriately. Anyone feel free to tell me I'm full of it...
Good Luck!!