Infill pencils in one of two ways. You capture the value in the lot rent stream, which at $340 takes over a decade at $58k a pad and only makes sense if you're valuing the stabilized park at a low cap rate and selling. Or you capture it in the home sale, where you recover most of the $58k up front and keep the lot rent as the actual return. Almost everyone doing this at scale is doing the second, and the reason many of them still lose money is the sale side, not the set side.
Used home economics: acquisition $16k to $20k, transport and re-set typically $6k to $12k depending on distance and whether it's a single or double, then $5k to $15k of rehab because a home that's being moved is rarely a home someone was maintaining. You land in the $30k to $45k range for a 25-year-old house, and you've spent months. The gap to new is narrower than the sticker suggests.
Harrow and thicket are pointing at the right diligence. "Live stubs" means a plumber and an electrician confirming it lot by lot, and pad condition, since some of those pads may not meet current setup or wind zone requirements.
Two things your post doesn't reach. If you sell homes to residents on payments, you're in consumer mortgage origination territory under federal rules and state licensing, and manufactured home dealer or retailer licensing is separate again and varies by state. Talk to a licensed attorney in that state before you structure a single sale. Second, holding those homes as rentals pushes your park-owned home percentage up, which can knock the park out of the financing programs a future buyer wants to use. That shows up at your exit, not now.
And don't expect an appraiser or lender to credit new infill NOI until it has 12 months of collections behind it.
