Lease Option Advice

I am looking to purchase 2 identical bldgs. Each is a 4-plex for a total of 8 units. Each is separately deeded with its’ own tax ID number.

List Price:
Prop A 340,000
Prop B 340,000

NOI
A. 29,580
B. 30840

Gross Rents
A. 37440
B. 38700

I have $50,000 cash and I plan to put down 10% on property A. I expect closing costs to be around $10k. My credit is between 720 and 800 among the 3 bureaus.

The dilemma is that the seller wants to sell both properties at the same time. However I do not have funds for a down payment on the 2nd property. Each property is separately deeded.
A third identical property down the street sold for 326,000 in May 2006.

My questions;

Does it make sense to tie prop B up in a lease option?

What terms should I add to the option?

Do you have boiler plate of a lease option that I can review?

Is there a better way to acquire these properties or structure this deal?


thanks,

Oak