Jimbo,
I will try to help you out for what I can (I would not consider myself an IDF armor expert especially arriving after Mr. Mass, but I built the first Merk.IV - no LIC - released by Academy)
Here we go:
Walkarounds: except for books that are supposedly your best source (and a visit to Latrun), try this website (several pages and links to wade through so you will have to spend some time on it):
http://www.supervideo.com/MXCD-ROMOS.htm?bcsi-ac-20a76bc15dbd50f6=1E8B927900000503xX5LTJ7CPH6IYN93pECtWlUPdNjdAQAAAwUAACwQNgAIBwAAcwAAAEtXBAA=Also be careful as the website has many Merkavas, not only Mk.IV LIC.
The gun on the first issue did have a problem. You can find some info here:
https://armorama.kitmaker.net/forums/133971&page=1He shows that you have to re-cut the same square on the other side of the gun plug (and also provides many other additional info). Check if the same applies to you.
The cover for the baskets I have found in pics to be:
- standard for the two hull baskets on the sides of the crew access hatch
- almost always there for the turret bustle rack. I have seen some exceptions on operational tanks (although the tarpaulin was rolled up and put inside the rack anyhow) but never an
empty rack during operations.
My personal recommendation would be to source resin ones (e.g. Legend) as they are not too expensive but would greatly improve the final look of the beast (and I know because I went the other way and have regretted it!).
Make sure to post progress pics and above all, as usual, have fun!
HTH