Writing a great offer

[Mark Beno]

Hello BP nation!  I need help with understanding and submitting a good offer, in general. First of all, I'm in NW Atlanta OTP.  I've read on BP that you should provide different options when making an offer to a homeowner. Assume the lead came via a postcard, and the owner called me. Here are the details on a house I'd like to buy and hold; I'm using round numbers for ease:

Property is 3/2 brick ranch sfr, built in early 1960's, with ARV = $100k

Updates will total $10,000

Applying the 70% of ARV formula gets me to $70k, less $10k in updates = $60k

Owner would like to get $75k - $80k; Rental rates are $1,000/mo on avg.

Option 1: Offer $55k cash

Option 2: Offer $70k owner financing, $10k d.p. to owner at closing, finance balance at 6% interest for 10 yrs, then pay off loan/refi/sell. Results in monthly pmt of $300 (int-only). However, the total paid out to seller is $10k + $36k (over 10 yr period) + $60k (balance at end of term) = $106,000. 

Option 3: Offer $80k, $5k d.p. to owner at closing, balance paid back in 200 months (16.6 yrs). Results in monthly pmt of $375, but house is paid off after term. Total pd to seller over the term is $80k.

I'm trying to differentiate the options, ie, what's better for me vs the owner, etc.. 

Does each option make sense in it's own right?  

Is there enough spread between the 3 options to persuade a seller to take one over the another? 

This is a hypothetical case, remember.  Any and all comments would be appreciated!