there are so many 2 family homes with all kinds of configurations there. the best you will be able to do is try and match the rest of the house, square foot, number of baths etc. you may be able to get away with a 6 bedroom house as a comp, 3 and 3. i know i am having the same trouble with a house i own in PA, its under contract but when they came back there was no exact comps to mine, we are in the process of fighting what the appraiser came up with right now, they came up with $38,000 under my list, but i know i priced it right based on price per square foot and whats in it, 2 family with 3 and and 1 bath each. try averaging what a 2 family sells for per square foot, that should give you an idea. then sell it to me for 100,000 less - just kidding, but you can let me know if you do decide to sell, I'm in the town next door.

If you end up with a broken shade, you might be able to find a match there, or just buy a whole used set for cheap.

Depending on how competitive your brokers are, they may or may not be able to match or beat the other's offer.

The bill didn’t match any other recurring bills I have setup, so thinking it was fraud I disputed the transaction. 

I treated the sheetrock with bleach, applied mold resistant paint and then color matched the paint.

I think matching the two (access to low interest finances in the US, and real estate developments in international markets is a winner). lets touch base when you have time we think through this. 

The way this should work goes like this.... 1) notice plumbing issue. 2) cut open ceiling and investigate.  3) find problem. 4) fix problem(s). 5) replace damaged sheetrock with a new undamaged piece. 6) after mud and tape, match existing popcorn or texture to what currently exists now on rest of ceiling unless it is a smooth finish. 7) if it's smooth finish or textured then prime and repaint ceiling. 8) done!

Since the margins are typically so tight on commodity lumber, the supplier either has to take the hit and match the market, or ride it out.4) If you're including trusses in this, those can vary dramatically - huge swings in price... in part because the design is subject to the individual designer as well as some supplier have in-house truss capability while others act as a middleman.  

The contractor couldn't believe his brother was going to use the single hung vinyl windows that matched the house for the addition (the contractor learned his craft in Cape Cod).  

Ask them how they handled their old housing and see if it matches with what you have found.If they are being honest, it would not be a deal breaker for me.