Here are a couple options I am thinking - 1.

However, I have been trying to figure out possible creative financing options to build more without having to sell, but I cannot seem to find a lender willing to do 100% down on land and construction even though the LTV would be below 50% since I can basically build for costs of material plus minimal labor by doing almost all of it myself , with a little help here and there.

:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.

Rates for seller financing are typically higher than conventional mortgage rates to compensate for the increased risk.

Reasons to sell the seller on the Owner financing might be, because you are going to do a substantial rehab to the property, or that the property doesn't have any buyers, and this is a way to sell the property.Seller Financing works a lot better when there is not a realtor to pay, where a realtor's commission could be 6%, which on a $300,000 Purchase would be $18,000.An additional option you might consider if you are looking at purchasing this property to do a flip, or fix and rent, is you could propose seeing if the seller would partner with you, and you would secure a Private Loan for 50% of the sales price, plus the rehab, and if there is enough upside equity, you would probably be able to do a cash out refinance and pay off the seller that way.

Comps that are as close as possible to the subject and not more than 90 days history used (unless there are noother options, but that will need to be justified in the BPO by the broker)4.

All of our purchases have been pocket listings and typically value add is the only way we have been able to see good CAPs and COC returns. 

Try to narrow down your options to the top 3-4.

you can also look into lower down payment options, like a house hack, or a seller finance deal. 

You can use a 1031 exchange to buy an investment property and later convert it into your primary residence, but there are a few rules to follow.Hold as Investment: Typically, you should rent it out for 1-2 years before moving in.