Aaron just bought his own house recently and the first thing he had planned was to build a miniramp, so we got right to work...
He got the Plans off https://thewickedmakers.com/product/backyard-mini-ramp-plans/ for $5
The lumber alone cost about $1200 (in 2020)
Coping was around $100
(Coping had to be special ordered since no local hardware store carried the needed lengths )
The Skatepaint was $110 for the gallon
All the hardware was donated
It gets covered with a 20'X30' Tarp during bad weather.