Great car, but definitely on the high side.
Check this one out for the same money.
https://www.hemmings.com/classifieds/cars-for-sale/lotus/europa/2518883.html
A no brainer, this is the one I'd take if $20k was the budget.
Back in the day a friend & neighbor had 3 of these in various stages of working order and body work....and that was somewhere around 74-76, a bit fuzzy on the year. We had some pretty awesome runs on the twisties in and around Brandywine, PA. Good memories.