I bought my Tin Lizzie 18 two plus years ago and it is the best thing I have ever done. I don't do any fancy quilting yet but have done about 20 quilts on it so far. I told my husband that I did not want to wait to purchase it (I was age 60 at the time). I told him I wanted to get it now while I could enjoy it rather than wait until I was older and maybe not physically as able to enjoy it. I hope that makes sense. I love my Tin Lizzie!!! Go for it!!! Sounds like you deserve it. I have to say I did not set my Tin Lizzie up by myself, my husband did it for me. I am not sure I could have done it by myself, but maybe. I bought mine over the internet and not locally, so setup is a consideration you might want to think about. I hope you get it.
Good luck!