Any ol' flintlock

I've been wanting to get an old beater flintlock cause I've never had nor fired one, only messed with caps. New, old, broken (with in reason), dent, beat, dinged, rusty, ill-timed, etc... I'd like to buy one but I have to do it on payments or such. I DO NOT want to seem like I'm trying to pull a fast one or sound "pityparty" with this. I am disabled and more times than not broker than broke. So here goes....

I would like to make payments for a flintlock, agreed upon both parties with a functional firearm, but it might take a while to fulfill the total payment. I will try as I possibility can to pay the agreed monthly payment. Reality and Murphy's Law hopefully will be kind with me during the time.
If perchance I might have another health issue (die or another stroke) and cannot fulfill the payment/deal, the deal will conclude with the monies sent retained buy the seller and the firearm with no need to send the money back. If need be I will write up a no BS contract between us and sign as agreed. I have in the past dealt with a gentleman handshake but I know times have changed.
As stated I don't get much SS but I do get a few bucks now and again. I don't want to make a fool out of myself doing this, I just want to play with a flintlock because.... Well, just because.

Thank you for your considerations.

*sorry for any typos or such*

Just wanted to let ya's know, I'm buying a flinter from the post here.
Not gonna name names, prices nor the particulars. I know some of ya's were rooting for me and others were meh/don't care. Anyway once I get it and work it over, with my daughters help, we will post the pictures and any noteworthy adventures with it. See ya in the funny pages later.