Your best bet would be to take a look at a combination of cash outs / or maybe just one in order to obtain your proceeds for the new purchase.

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You can easily locate a decent lot and include that into the primary manufactured home purchase. 

Purchase price: $550,000 Cash invested: $120,000 Sale price: $710,000 I bought in December of 2022.

Purchase price: $550,000 Cash invested: $120,000 Sale price: $710,000 I bought this property in December of 2022.

It would have been a great idea before i purchased my house. 

When I go to the State of Alabama website, under Tax Delinquent Properties, there are "leftover" Tax Deeds in certain counties that were never purchased, which the state is still trying to sell.

There is an empty lot I'm interested in purchasing but it has a decades old community pool that has been filled in.

I can find properties in my market that perform similar on a larger scale (more costly but similar percentages) but they bleed cash after the refi which is why I have not purchased in 2.5 years.  

Sounds like you need financing for both the purchase and for the rehab.