Advice please

Today a strange yet wondrous thing happened to me, and essentially  I'm in need of advice. Someone who quit playing Warhammer 40k a long time ago gave me ALL their models. The models aren't for my army, they are chaos Space marines,  but free models are awesome right? SO I have what I calculate to be around $200 worth of models and i'm not exactly sure what to do with them.... I really like the idea of space pirates so red corsairs might be cool but I haven't finished my Necrons yet so I don't want to start a second army with one half finished. here's a list of what the kind gentleman gave me.

• 1 Chaos Dreadnought
• Fabius Bile and another model that I think is an HQ but can't identify
• 1 Champion of Khorne
• 1 noise marine
• 1 box of chaos Terminators
• 2 boxes of chaos space marines
• One eldar jetbiker ( don't ask it's very random considering all the other stuff)

Also all these models are painted and assembled but neither is an amazing job, some of the bitz are falling off from being in a shoe box for the past few years. I would post a picture but my camera is awful. I'm positive about everything but the 2 boxes of chaos space marines.  I know one squad definitely is chaos space marines but the others might be something else, they look like what is described as an alpha legion chaos space marines. I have no idea about current points cost because the codex given to me was also out of date, but I know it's not a whole lot.

I have a few options, one would be to give Moros any models he would like because he plays chaos. Another would be to keep the army and share it with the prophet who is my younger brother (damn him for coming along, sharing sucks).OR I have another option. One of our newest members wants to play blood angels and I know this might sound risky or even blasphemous to some of you but I could either convert the models to look like blood angels or even plain space marines then paint them the blood angels colors, or just allow him to use them as blood angels as is or with a paint job. Normally I wouldn't do this and I only will if it's ok with the other members. Also, no I can't get the entire club armies to play with. I know that this particular member is going to have a tough time getting models because he is  too young to get a job, has no allowance, and not to mention parents don't usually shell out cash for toys for no reason (aka this would require 40k to cut into Christmas and birthdays which is fine. However, if 40k isn't that important to him he may never get any models which may cause him to loose interest.)

 The best choice in my mind now is to lend the models out at game days to anyone who wants to use them but my mind isn't really made up yet. Also I'm not going to sell them, even though I could probably almost finish my 2000 point Necron list with the cash. Any advice reader can give is greatly appreciated, I would especially like to hear from the club on this matter.