Need some advice on rallyes

Hi,

I have a 71 Valiant slant 6 which is totally original including the plain steel wheels and hub caps.

I briefly met a mopar guy today who has a set of small bolt pattern ralleyes he might sell me. I was only able to get a brief look but they look to be in good condition with trim rings. Two of the wheels have center caps and two are missing. I wasn't able to get dimensions but he said they were the small bolt pattern wheels and are quite rare.

I will have to check into the dimensions further but I was wondering if you guys might be able to give me an idea what a set of these things are worth?

I would like to make him an offer but I don't want to be insulting and also don't want to get ripped off.

Thanks in advance