RedB66's suggestion is one of the best and easiest ways to go and that is with the HD Wheels available thru BikeWorldUsa!
I have worksman wheels on some of my builds these wheels are by far my opinion the best way to go.
I have recently been working on a new build for a customer its a stretch cruiser with ouch my fingers are killing me its very hard to type right now suffering from 68 spoke spoke-itis.
Yes I did and will never again use a 68 spoke wheels on any new builds took me about 6 hours to mount the sprocket.
From now on its heavy duty wheels 36 spoke only, dont know what I was thinking when I told customer sure I can mount the sprocket on the 68 spoke wheel never again.
So if you want to try using the 68 spoke wheel, feel my pain don't It's a nightmare!
However if you are like me and want to try the 68 spoke wheel, heres how I did it.
I bought at lowes 3"x3" rubber cuppling cut it to 3/4" thickness I started buy putting wheel on a large bucket then laid 3/4" spacer I made then sprocket then bolts thru sprocket etc etc ... 6 hours later and swollen fingers to show for it a 68 spoke wheel with drive sprocket ready for chain.
By the way motor mounts are a design that are from none other than, RedB66 also!!!
The motor mount brackets are available at your local home improvement store ie Lowes & Home cheapo. These are simpson A24 strong ties about $2.00 a piece.
You'll need to purchase 3 simpson A24 strong ties,
2 for the front of motor they need to be doubled in the front for added strength,
1 for rear of motor,
next you'll need 4 muffler clamps use only the brackets not the U bolt these are available at your local auto parts store,
then you'll need 4= 3"long 3/8" dia bolts flat & lock washer,
and the nuts then bolt them on starting with front motor mount first then start on your rear motor mount.
BTW you'll also need to bend the A24 brackets on a steel vise, then drill 5/16th holes for muffler brackets, then drill I think its 1/4" holes for studs on motor to fit thru A24 & grind down the V points on the muffler brakets so they wont hit each other when you tighten them.
Try the simpson A24 strong ties they are super strong 12gauge steel for a strong inexpensive motor mounts.
Especially designed by RedB66 for use on the stretch cruisers!!!
Peace All Crazy Horse has Spoken the Truth!!!
NOTICE ALWAYS INSPECT YOUR MOTORIZED BIKE BEFORE RIDING IT COULD BE THE LAST TIME YOU EVER DO INSPECT IT. BE SAFE & ENJOY YOUR RIDING!!!