1936 Chevy Lowcab"New to Chevy Trucks"Hello all,

I'm a lifelong car enthusiast, and have owned quite a few over the years that I wish I still had, as I'm sure nearly everyone can relate to. I've had two Mustangs, a Camaro, a Formula Firebird, a '35 Ford 5 Window, and I currently still own a '52 Chevy coupe project. I've worked on cars since my teenage years, but got more heavily involved in building motorcycles. I did a good deal of my own fabrication work, including building tanks, fenders, exhaust systems, seats, and lots of small brackets, mounts, and adapters of various sorts to make things work.
Life then took me a different direction and I took a hiatus from both bikes and cars for a number of years. I started getting the itch for a car again a couple years ago and began casually looking. I've always liked traditional hot rods and led sleds, and even antiques in stock form. I was looking for a car, but trucks started getting more and more of my attention. I finally found a '52 Chevy truck that I was interested in buying, but I didn't act on it quickly enough. I continued to search for another one.
Then I saw a friend of a friend's '38 and I couldn't get that truck out of my head...that is until I started looking at the '36's. After a couple years of looking at, and considering, quite a few different cars and trucks of various makes, models and years, I kept coming back to a '36 Lowcab, so I began searching mostly for that specific truck. To sum this all up, I finally purchased one this summer.
The truck is an older restoration, driver quality vehicle. Not perfect by any means, but nice enough for me. I was hoping to find something that already had an engine/driveline swap, but everything I came across was either a street rod type of restoration (not really my thing), or was out of my price range.
So I settled on a stock truck, thinking perhaps I'd be satisfied with it as-is. It's definitely a lot of fun to drive this old girl around, but it's quite limiting only being able to do 45-50mph. I want to drive it further, and do it safely without getting run over, so a driveline swap is in the plans. I'm reluctant to do this, as part of me hates the thought of taking apart a good working vehicle, but I really want to spend more time behind the wheel going longer distances. I'm going to have lots of questions for you guys. I'm completely new to antique Chevy trucks, but I've learned a good bit already.
I do have a 350 engine that I've had for years, and also a Ford 9" rear that just happens to be the correct width. But I'm not so sure about the SB Chevy swap. It would be the most economical since I already have it, but it I'm thinking more about a 250 or 292 to keep it an inline 6. That's a lot more interesting! I don't need, nor want, a speed machine. I just want an enjoyable truck to drive. Don't need a mustang II, or power steering, or anything fancy. I just need a bit more speed. I want to keep it a manual transmission, so I've already picked up an S-10 T5.
I've already learned a lot from this site, so thank you all for that, and thank you all in advance for any future help and advice!