To swing or not to swing?

so this is our latest desired project. to finish the back yard and finally give our kids a swing set. we have looked and tried to plan and even went to sams to scope it out...now... do we do this or not? our back yard is so slopped that we are going to have to do some excavating in order for the thing to sit right. And it just looks gigantic. we still have to lay the sprinklers and grass and finish the paver patio and walk way.... oh and curbing. oh ya... and it's september. our summer project got away from us way too quickly. oh but what fun they will have and just to see their excitement... price wise this is the best we've seen for the size and quality. it's even too big... I don't know... maybe we should wait till spring. :)