You sound very mature and reasonable. I wish more young couples had your pragmatism.
There are lots of ways to cut down the cost of a wedding/reception. The easiest, of course, is to limit invitations to just close friends and family. (Of course, that also will cut down on the number of gifts you receive.)
Another easy way is to hold the wedding/reception at a non-traditional place, such as a public park shelter. One of my friends had her daughter’s wedding/reception in their barn. Seriously. People literally sat on haystacks. And everyone who attended said it was a spectacular wedding. If you’ve bought your house by then, and it’s unfurnished, why not use it for the reception?
Just paring down on the formality can help cut expenses. For instance, your groom can just wear a nice suit instead of a tux. You can put daisies on the tables instead of a formal arrangement. You can serve a picnic lunch on paper plates instead of prime rib on china.
Shop for a used wedding dress at consignment shops or eBay.
Get your wedding cake and flowers from Costco. (Once you call it a “wedding” cake, many traditional bakeries double the cost.)
If you have your heart set on a traditional, formal reception, the easiest way to cut down on the reception cost is to have it on a non-Friday or Saturday night, such as a Sunday afternoon. Many rental halls charge double for Fri/Sat nights. My SIL had her wedding in the middle of an Embassy Suites atrium. It was actually very reasonably priced, and they only charged for catered food and no facilities fees.
As far as the honeymoon goes, there’s no need to take the dream honeymoon right away. You’re newlyweds and any place you go is going to be a great adventure (I hope). Look on the map for places you can drive to in a day, then put your money toward lodging instead of airfare. Rent a condo via VRBO vs staying in a 5 star hotel. Or hit relatives who own great vacation homes up for a discounted week.
And, of course, buy a used car. Look for reputable cars coming off a 2 or 3 year lease. I also wouldn’t hesitate to buy used furniture, such as kitchen/dining room tables, bed frames, desks, chests, lamps, end tables, etc. I certainly wouldn’t buy a used couch or mattress, but I sure wish Craigs List would have been around when I was a newlywed. You can buy good quality used stuff for the same price as crappy quality new stuff.