Hello Bob It depends a bit of your financial situation.
If you are still interested in an indian there are other models from 20/30 with another easier engine mount which are rliable and easier to work on, however the price goes up as well, f.i. the 101 scout is a lovely bike with a 750 engine and good performance.
In harley world it is the same ,the bigger bikes 1200/1340 are good but pricy.
I myself have a 1942 civilian 750 sv harley already for 28 years.
The bike is easy on maintenance and riding is very comfortable.
trips of 500 to a 1000 miles are no probleme and spares are still available because they were made in big numbers during the war and fit militairy as well as civilian.
So if you are looking for an easy american restoration I should go for the 45 (750),only beware of bikes coming from poland or bikes that are fitted with made in taiwan stuff