Sorry I didn't see this earlier but welcome from another southern Minnesotan
I guess I would ask this...You already have access to 3 of the Big 4 + PBS. Do you just want to get maybe NBC and a couple extra stations from the Godahl tower or do you want to try and get all of them? Reason I ask is this. While you do have line of site to Godahl keep in mind you're 35 miles away and we're working with low powered translators. Most are around 2,000 watts. So the signal will go kaput the further you are away.
I can use a real life example of picking those stations up. I've taken a 2 bay antenna in the parking lot of MSU Mankato (30 miles away) and the easiest stations to pick up are 30, 21 and 26.
30 maps to 5-1 and is the easiest because unlike the other stations that are at 2,000 watts, RF30 is at 12,000 watts. So unless you want Heroes and Icons its kinda a moot point as you already get ABC via KRWF. If I recall you also get 45tv (43-2) and MeTV (43-3) on KRWF.
21 maps to 11 but note it actually maps to 11-4 through assume 11-7 (KARE is 11-4, WXNation 11-5, Justice 11-6 and assume Quest 11-7). This is due to folks in the Jackson area (where there is another translator farm) picking up KELO which is also on 11-1. Some TV's can't map more than one PSIP so if it picked up the translator farm and KELO their TV would freak out.
26 maps to 2-1 for PBS (KTCA)
34 maps to 9-1 for KMSP FOX 9, Fox 9+ and Movies!. I know its a redundant FOX as KEYC has FOX also but KEYC's FOX is kinda bitstarved so you'll see smearing on fast motion (I get KEYC all the time so I've seen it mainly on sports but even some programs).
a 4 bay antenna would work well outside but to get KEYC you would want VHF too. I noticed there wasn't really any home supply shop (Menards, Fleet Farm, Lowes, Home Depot) near you but one antenna I used when I lived in suburban Minneapolis was this one
What I would do is when you get an antenna try it without the pre-amp. You can always add one later. The RCA TVPRAMP1Z one you mentioned above has been suggested numerous times by folks. I have one myself (actually two...one at home and one at the lake house on Mille Lacs)
A person who is a satellite TV installer recommended going with a HDB91X and a preamp
That would work but it is a big antenna. They do have some smaller yagi antennas that do work for this example