Looking for advice regarding SBA loans and HELOCs

I really appreciate this community. Reading others’ experiences has been incredibly helpful as we navigate our first acquisition search.Looking for advice regarding SBA loans and HELOCs: My spouse is currently W-2 but will transition soon into self-employment/1099 work as we pursue an acquisition. I also own a newer business, so my income is from this and 1099 contracting work. We had been considering opening a HELOC on our primary residence before my spouse leaves the W-2 role, mainly for acquisition liquidity / potential SBA equity injection. However, we’ve heard conflicting things about how SBA lenders currently treat HELOC payments. 1. Does the SBA consider the full HELOC as part of your debt regardless of if you have drawn on it or not? 2. Does the SBA still want outside income (separate from the acquired business) to support the HELOC payments? Or we've also heard some say that: under newer SBA SOP guidance, the acquired business cash flow / buyer salary can support the HELOC payment as long as global cash flow and DSCR work post-close? Because of that, we’re trying to think strategically about whether opening the HELOC before leaving the W-2 role is smart, or whether we’d actually be better off avoiding the HELOC entirely and using friends/family capital for the down payment to keep personal leverage and underwriting cleaner. Would appreciate any real-world experiences or advice from the community.