I have about 100k cash on hand to buy a business via an SBA loan but am needing more cash (250k?) to be able to buy a decent sized business. I'm looking for something that has SDE of >$700k.

I'm looking at getting a HELOC to cover the gap in funds but wanted to get thoughts on this strategy. I've also thought about looking for friends/family to invest to cover that difference but I don't particularly like that route and would prefer it as a last resort.

What am I missing or is this a good path to get the needed funds to buy a business? TIA!